专利摘要:
A greenhouse (1) comprises a system of uprights (110) arranged in rows. Each upright comprises a first upright part (111) fixed with respect to a bottom and a second upright part that is vertically displaceable relative to the first upright part (111). Mutually parallel ridge beams (150) are attached to the upper ends of the second upright parts. Roof gutters (160) are suspended between the rows of uprights, mutually parallel and parallel to the ridge beams, wherein a gutter is always connected by inclined connecting elements (141) to the second upright parts of the two uprights (110) on either side.
公开号:BE1019640A3
申请号:E2010/0138
申请日:2010-03-04
公开日:2012-09-04
发明作者:Christiaan Adrianus Cornelis Antonius Bastiaansen
申请人:Meteor Systems Bv;
IPC主号:
专利说明:

Title: Roof construction
The invention relates to a roof construction, in particular for a greenhouse for growing products such as fruit and vegetables.
The purpose of a greenhouse is to protect the crops growing therein, in particular against cold, wind and rain, while allowing sunlight into the crops. A greenhouse can have a classical house shape, and then generally comprises walls and a roof, the roof typically having a triangular contour with sloping roof surfaces. It is common for the walls and roof surfaces to be made of glass plates included in a metal framework. However, this requires a relatively expensive and permanent construction. It is also known to form a greenhouse made of plastic foil that is tensioned on supporting arches: a so-called tunnel greenhouse. Such a greenhouse has a temporary character.
Tunnel greenhouses are, however, relatively small, and the tensioning of the film on arches is difficult. Furthermore, known tunnel greenhouses are only suitable for growing crops standing on the ground or in the ground. For growing crops at height, it is known to place a cultivation gutter construction in a traditional greenhouse (house-shaped greenhouse or tunnel greenhouse) on columns, wherein a column must be placed at regular intervals (approx. 2 m) under each gutter.
The present invention has for its object to provide a construction for a greenhouse that combines the advantages of a tunnel greenhouse and a house-shaped greenhouse. More particularly, it is an object of the present invention to provide a construction for a greenhouse which can be assembled and disassembled quickly and easily, and whose components require relatively little space in the disassembled state.
These and other aspects, features and advantages of the present invention will be further elucidated by the following description with reference to the drawings, in which like reference numerals indicate like or similar parts, in which indications "below / above" , "higher / lower", "left / right" etc relate solely to the orientation shown in the figures, and in which: figure 1 shows diagrammatically a perspective view of a part of an embodiment of a support structure for cultivation troughs of a method according to the present invention Fig. 2 schematically shows a perspective view of a part of an embodiment of a roof construction for a greenhouse provided by the present invention; Fig. 3 schematically shows a perspective view of a part of an embodiment where the bearing construction and roof construction are integrated; shows a perspective view, gel calibrable with Figure 1, of an end portion of the support structure; Figures 5A-E show confirmation details; Figure 4 illustrates another embodiment of a greenhouse proposed by the present invention.
Figure 1 schematically shows a perspective view of a part of an embodiment of a greenhouse 1 proposed by the present invention, for the sake of clarity in the disassembled state. The greenhouse 1 comprises a system of a plurality of mutually parallel horizontal cultivation troughs 10. Each cultivation trough is adapted to place a substrate therein in which the crops to be grown grow. Each growing gutter is typically shaped as a folded plate, and has a longitudinal direction indicated by the arrow L in Figure 1. Commercial growing gutters are typically many tens of meters in length, and can be longer than 100 m. Figure 1 shows a few adjacent juxtaposes. grow gutters only see a small part of the length. The longitudinal direction L of the gutters will also be referred to as the longitudinal direction of the greenhouse. The horizontal direction perpendicular to this longitudinal direction will be referred to as the width direction.
The greenhouse 1 has a roof construction, which is generally indicated by the reference numeral 100, and a suspension construction for the cultivation troughs, which is generally indicated by the reference numeral 2000. As a common element for these two constructions 100, 2000, the greenhouse has a frame formed by uprights 110. Each upright 110 is extendable. Although several constructions are conceivable for this, each upright 110 is telescopic in the embodiment shown, that is to say that each upright comprises at least two upright tubes 111, 112 which can be slid into each other. The lower tube 111 is anchored relative to the bottom 101; in the embodiment shown, the lower tube 111 extends a part of its length into the bottom 101, this tube 111 will also be referred to as "anchor tube". The second tube 112 will also be referred to as "telescope tube". It is possible in principle that a third tube is telescopically slidable in the second tube 112, but this is generally not necessary and is not shown in the figure. The telescopic tube 112 can be fixed in a desired position relative to the anchor tube 111 by suitable clamping means, as will be clear to a person skilled in the art and not shown for the sake of simplicity.
The figure shows a few uprights standing next to each other in the width direction. The suspension construction 2000 for the troughs 10 shown in Figure 1 is repeated along the length of the troughs 10.
The suspension structure 2000 will first be discussed with reference to Figure 1.
Attached to each telescope tube 112, at a certain distance below the upper end of the telescope tube 112, is a mounting flange 116. The method of attachment is not essential: this may, for example, have been done by welding or screwing or the like. The flange 116 is preferably part of a bracket clamped to the telescopic tube 112, so that it is possible to change the vertical position of the flange 116 relative to the telescopic tube 112.
A horizontal support 120 is always attached to the mounting flanges 116 of two uprights 110 standing side by side in the widthwise direction. The carrier 120 comprises a central, substantially U-shaped support bracket 121 and two elongated support elements 122, 123, which are attached to the support bracket 121 and a respective mounting flange 116. Although several embodiments and mounting methods are conceivable here, a preferred embodiment of the present invention invention the following construction. Each mounting flange 116 has a mounting eye. The carrying bracket 121 is provided with two fixing eyes 124, 125. Each carrying element 122, 123 is designed as a metal rod, the ends of which are bent in a hook-shaped manner over approximately 180 °. One hook-shaped end of a support element 122, 123 engages in a mounting eye 124, 125 of the support bracket 121 while the other hook-shaped end of the support element 122, 123 engages the mounting eye of the corresponding mounting flange 116.
Instead of a metal rod, a support element could be designed as a cable.
Instead of separate support elements 122, 123 and a separate support bracket 121, the horizontal support 120 can be designed as an integrated one-piece whole.
Several culture troughs 10 are suspended on the horizontal carrier 120 between two uprights 110. Each gutter 10 is supported by a support bracket 130. The gutters 10. may have different contours, and the support brackets 130 have a contour adapted to the corresponding troughs 10. In the embodiment shown, each culture trough 10 has a substantially U-shaped cross-section, with a bottom 11 and side walls 12 and 13 that together define a space 14 for receiving culture substrate. A central recess 15 is provided in the bottom 11, which serves as a drainage channel for draining off excess water. The support bracket 130, which may be shaped like a curved metal strip, extends transversely under the gutter 10 and is provided at its ends with mounting eyes 131, 132. The mounting eyes 131, 132 may be separate parts that are attached to the support bracket 130, preferably integral to the support bracket 130 formed by bending the ends thereof, as shown.
The support bracket 130 is suspended from the horizontal support 120 by means of vertical suspension elements 133, 134. The suspension elements 133, 134 can be designed as a cable or chain. In the preferred embodiment shown, each suspension element 133, 134 is designed as a metal rod, the ends of which are bent over about 180 ° in the form of a hook, the lower hook-shaped end of a suspension element 133, 134 then engaging a mounting eye 131, 132 of the support bracket 130 / alternatively, the metal bar could be integrally formed with the support bracket 130. For a central gutter 10, which is located under the support bracket 121, the upper hook-shaped end of the suspension element 133, 134 engages in the fixing eye 125, 124 of the support bracket 121. For a decentralized gutter 10, the upper hook-shaped end of the bracket engages. suspension element 133, 134 directly onto a support element 122 or 123. In that case it is preferable that the rod-shaped suspension element 122, 123 is bent in the shape of a W, the upper hook-shaped ends of the suspension elements 133, 134 being located in the respective pits 127, 126 of the W-shape, to achieve a positional fuse in the width direction. If a support element is designed as a cable, this cable can be provided with a W-shaped bent bracket.
It is also possible that a support bracket 130 is attached at one end to the telescope tube 112, while its other end is suspended by a suspension element 135 on a support element 123, as shown in Fig. 1 at A. In that case, the positional fuse in the width direction already provided by the attachment to the telescopic tube 112, so that it is not necessary to bend the support element 123 into a W-shape or V-shape.
The horizontal support 120 is supported at various locations by garden elements 141, 142 connected to the uprights 110. At each top end of the telescopic tube 112 there is a mounting flange 140 at the top end thereof or at least at a position of the mounting flanges 116 confirmed, which will be referred to as the upper mounting flange. Again, it holds that the method of fixing is not essential, but, for example, each fixing flange 140 is fixed by welding. Each upper mounting flange 140 preferably comprises one or more mounting eyes. A first garden element 141 extends from this upper mounting flange 140 to the central support bracket 121, more particularly to a mounting eye 124, 125 thereof. A second garden element 142 extends from the upper mounting flange 140 to a mounting point on a support element 122, 123, more particularly to the central top of the W-shaped bent portion thereof. Each garden element 141, 142 may be in the form of a cable or chain, but is preferably and as shown in the form of a metal rod, the ends of which are bent about 180 °.
It is noted that the central support element 121 can also be designed as a W-shaped bent bracket.
The roof structure 100 will now be discussed with reference to Figure 2.
Each upright 110 is provided at its upper end with a cam 150 which is directed in the longitudinal direction of the greenhouse and which connects adjacent uprights with each other. Only a part of this cam 150 is shown in FIG. In order to obtain more stability in the longitudinal direction of the greenhouse, each upright 110 can be provided with one or more oblique chimneys to the bottom or to the foot of an adjacent upright, but this is not shown in this figure.
In this example, the roof structure 100 comprises a horizontal support 120, which is a central support bracket 121 and two elongated support elements 122, 123, which support 120 is attached to flanges 112 and is connected to mounting flanges 140 by means of garden elements 141, 142. For these parts the same applies as that which has been described above in the context of the suspension concept, so that this description is not repeated.
The central support brackets 121 carry a roof gutter 160 directed in the longitudinal direction of the greenhouse. Although the shape of this roof gutter 160 is not critical, it is advantageous if this roof gutter has the same shape as the cultivation gutters 10, in other words that a cultivation gutter is used. as a gutter. This has the advantage that it is not necessary to manufacture different types of gutters. In a possible embodiment, the central support bracket 121 for carrying the roof gutter 160 is designed in the same way as the support bracket 130, as illustrated in the enlargement of Figure 2, so that a discussion thereof is not repeated.
A plastic foil 170 is provided over the ridge 150, which is only schematically indicated in Figure 2, and which is directed obliquely downwards to the gutter 160 and is attached thereto, as will be explained later. Said roofing film 170 is thus supported by the first connecting elements 141. According to an important aspect of the present invention, the first roof elements 141 and possibly also the second garden elements 142 are adjustable in length. This can be implemented, for example, in that a garden element is constructed in two parts, whereby one part can be screwed into the other part, or wherein both parts are provided with mutually oppositely oriented threads as well as a tensioning swivel engaging on both threads, as is known per se. By increasing the length of the first connecting elements 141, the roof gutter 160 drops relative to the cam 150, whereby the film 170 forming the roof 170 is pulled tight.
In the foregoing, the suspension structure 2000 and the roof structure 100 have been discussed separately. In essence, they could be used separately in a greenhouse, and it is even possible for the roof structure 100 to be used without the cultivation troughs 10 and their supporting structure 2000, for example for growing outdoors or in containers standing on the ground. In one embodiment of the greenhouse 1, however, the roof structure 100 and the support structure 200 are integrated, as illustrated in Figure 3. The horizontal support 120 and the garden elements 141, 142 are both a functional part of the suspension structure 2000 for supporting the cultivation troughs. 10 as a functional part of the roof structure 100 for supporting the roof foil and the gutters 160. It can also be said that the cultivation gutters 10 are suspended from the roof structure 100.
It will be clear that the present invention thus provides a construction for a temporary greenhouse that can be easily assembled or disassembled, and which consists of relatively simple and inexpensive parts that have a relatively low weight and that take up relatively little space in the dismantled state.
By shifting the telescopic tubes 112 relative to the corresponding anchor tubes 111, the entire roof construction, including the associated cultivation troughs 10, can be positioned higher or lower. It is possible that the vertical position of the telescopic tubes 112 relative to the corresponding anchor tubes 111 is set once when building the structure, but it is also possible that each upright 110 is provided with an associated winch, or that the installation is provided of a mobile winch that can be coupled to any upright 110 to raise or lower the height of the roof after erection.
Figure 4 is a schematic view showing that on the sides of the greenhouse 1 a roof gutter 160 and the culture gutter 10 located below are attached to a post 110.
Various constructions are possible for joining the roof foil to the gutter 160. Figures 5A and 5B show various examples of possible embodiments for this. In both cases, the roof foil 170 is provided at its end edge with a cover 171 with a tendon 172 therein. A rubber coupling piece 180 has a first channel 181 for receiving these caps. nïe0 λ tendon 172 can shift longitudinally in this first channel 181 but cannot be pulled out of channel 181 in the lateral direction. Opposite the first channel 181, the coupling piece has a second channel 182.
In the first embodiment of Figure 5A, the gutter 160 has a folded top edge 161 that forms a bulge that fits into the second channel 182.
In the second embodiment of Fig. 5B, there is provided a coupling band 190 which is also provided with a string 192 in a cover 191. The string 192 of the coupling band 190 is arranged in the second channel 182, while the coupling band 190 is connected to the The wall of the gutter 160 can be fixed, for example by screws.
An alternative method of attachment will be described with reference to Figures 5C-5E. Fig. 5C is a perspective view schematically showing the end of the gutter 160, with a front end wall of the gutter removed for the sake of clarity. A steel cable 310 (or, alternatively, a rod) is tensioned approximately in the longitudinal center of the gutter 160. In the embodiment shown, the steel cable 310 is fixed by means of a tensioning gland 311 to a transverse rod 312 mounted transversely to the gutter 160. This transverse rod 312 may, for example, be secured by two holes arranged opposite each other in the side walls of. the gutter. Such cross bars 312 can be arranged at regular distances along the length of the gutter 160.
Along the side edge of the roof foil 170, hooks 313 are attached at regular mutual distances. The hooks 313 can be S-hooks, as is clear from Figure 5D. With reference to Fig. 5A, the roof foil 170 can be provided at its side edge with a cover 171 with a string 172 therein. Holes can be arranged at regular mutual distances in which cover one end of an S-hook through such a hole extends and engages the tendon 172. It is also possible that the roof foil 170 is provided at its side edge with a reinforcement band 173, for example made of PVC, schematically illustrated in Fig. 3E, wherein holes 174 are arranged in said reinforcement band 173 at regular mutual distances. .
The other ends of the hooks 313 engage the steel cable 310, as can be seen clearly from Figure 5D. An advantage of this construction is the easier attachment and release of the. foil 170. Furthermore, the advantage is achieved that rainwater (outside) and condensation (inside) dripping from the foil roof 170 is collected with certainty by the gutter 160. Furthermore, the advantage is achieved that ventilation is possible along the side edge of the roof foil.
Thus, the present invention provides a greenhouse 1 with a system of uprights 110 arranged in rows. Each upright comprises a first upright member 111 fixed with respect to a bottom and a second upright member vertically movable with respect to the first upright member 111. Mutually parallel ridge beams 150 are attached to the upper ends of the second post parts. Roof gutters 160 are suspended between the rows of uprights, mutually parallel and parallel to the ridge beams, wherein a gutter is always connected by inclined connecting elements 141 to the second upright parts of the two uprights 110 on either side.
The greenhouse further comprises a roof formed by plastic film 170, which always lies on a ridge beam and the connecting elements coupled thereto and whose side edges are connected to the side edges of the gutter. The connecting elements have an adjustable length in order to be able to vary the height of the gutter 160 and thus to be able to tighten the roof foil 170.
It will be clear to a person skilled in the art that the invention is not limited to the exemplary embodiments discussed above, but that various variants and modifications are possible within the scope of the invention as defined in the appended claims.
In the described embodiment, the culture troughs are U-shaped. It is also possible to use grow gutters with a different contour, for example with an inverted U shape or Ω shape. However, the roof construction of the greenhouse can also be used if cultivation gutters are not used, for example for growing products in the open ground. In addition, the roof construction can be used in all situations where it is desirable to be able to construct a temporary roof construction quickly and easily, for example for covering a market place.
In the embodiment shown, one culture gutter hangs on the uprights and three culture gutters hang between the uprights, with one central culture gutter under the roof gutter and two decentralized culture gutters on either side thereof. However, it is possible that a plurality of troughs hang on either side of the central culture trough on the horizontal support 120. Conversely, it is possible that there are no gutters on either side of the central culture gutter hanging on the horizontal carrier 120, in which case the horizontal carrier 120 can even be omitted. Furthermore, it is possible that the central cultivation gutter under the roof gutter is missing if the distance between the uprights is too small to place four gutters next to each other.
In the embodiment shown in Figure 1, the telescopic tube 112 slides into the anchor tube 111. However, it is also possible that the telescope tube 1.12 has a larger diameter than the anchor tube 111 and is therefore around the anchor tube 111. This also offers the advantage that the ingress of moisture into the anchor tube 111 is prevented.
The use of an upright 110 with adjustable length has, inter alia, the advantage that the upright is easier to handle during assembly and disassembly, that it is easier to correct deviations, and that it is easier to hang the gutters to slope.
In the embodiment discussed with reference to Figure 1, the upper mounting flange 140 is fixed with respect to the telescopic tube 112. In a preferred variant, the upper mounting flange 140 is vertically adjustable with respect to the telescopic tube 112. Even more preferably, the mounting flange 140 and cam ridge 150 attached to a height-adjustable upright part relative to telescopic tube 112, so that the height of the cam beam can be adjusted.
Figure 6 illustrates another embodiment of a greenhouse according to the present invention, the roof structure 400 of which is uncoupled from the support structure of the culture troughs (it being clear that the support structure of the culture troughs can be omitted if desired). The roof structure 400 again comprises the uprights 100, which in turn are preferably made in two parts with an anchor tube 111 and a telescope tube 112. At the upper end of the telescope tube 112 a third upright segment 113 is arranged, which will be referred to as a cam upright segment, the upper end of the telescopic tube 112 is fixed so that its vertical position is adjustable. A first mounting flange 114 is attached to the cam upright segment 113. To the first mounting flange 114 are attached first garden elements 141 which support the gutters 160. The first garden elements 141 can again be designed as rods or cables, and can be extended by means of tension glands 144. The roof foil 170 is again attached to the roof gutters 160. By extending the first garden elements 141, the roof gutters 160 fall tightly around the roof foil 170 to tighten.
In the event of a storm, the gutters could be lifted by the wind. To prevent this, the roof structure 400 further comprises anchor cables 145, which are tensioned between the gutter 160 and a second flange 115 fixed at a lower level to the telescope tube 112. This second flange 115 is also preferably clamped to the telescope tube 112 for be movable in a vertical direction. The anchor cables 145 can also be provided with clamping swivels, but that is not shown for the sake of simplicity.
A culture carrier horizontal support 120 suspended from third flanges 116, which are attached to the upright 110. This third flange 116 is also preferably clamped to the telescopic tube 112 to be movable in the vertical direction. The horizontal carrier 120 can be tightly tensioned by tensioning glands 128. The horizontal carrier 120 supported by second and third sleeve elements 142 and 143, which in turn can be designed as a rod or cable, and which are attached at their top end to a fourth flange 117 in turn, it is attached to the telescope tube 112 near the upper end thereof. Instead of a common flange 117 for the second and third garden elements 142 and 143, there may also be separate flanges.
Features described only for one particular embodiment are also applicable to other described embodiments. Features of different embodiments can be combined to achieve a different embodiment. Features that are not explicitly described as being essential may also be omitted.
The reference numerals used in the claims are for the purpose of clarification only in the understanding of the claims in the light of the exemplary embodiments described, and should not be construed as being limitative in any way.
权利要求:
Claims (14)
[1]
A roof construction (100; 400) for a greenhouse (1), comprising: a system of uprights (110) arranged in rows, each upright (110) preferably having a first upright part (111) fixed with respect to a bottom and a comprises second upright part (112) that is vertically displaceable relative to the first upright member (111); wherein mutually parallel ridge beams (150) are attached to the upper ends of the uprights (110); wherein roof gutters (160) are suspended between the rows of uprights (110) by means of first gully elements (141), with the roof gutters mutually parallel and parallel to the ridge beams (150); wherein the greenhouse further comprises a foil roof (170), which always lies on a ridge beam (150) and whose side edges are connected to the gutter (160); and wherein the garden elements (141) have an adjustable length in order to be able to vary the height of the roof gutter (160) and thus to be able to tighten the roof foil (170).
[2]
Roof construction according to claim 1, wherein a cable element (141) comprises a cable or a metal rod, the ends of which are bent over approximately 180 °.
[3]
3. Roof construction according to claim 1 or 2, wherein the roof gutter (Γ60) rests on support brackets (121), wherein the garden elements (141) engage on the support brackets (121).
[4]
Roof construction according to any of the preceding claims, wherein the upper ends of the garden elements (141) engage on a first mounting flange (114) which is mounted at the upper end of the upright (110).
[5]
The roof structure of claim 4, wherein the first mounting flange (114) and the ridge beam (150) are attached to a vertically adjustable ridge post segment (113).
[6]
Roof construction according to any of the claims, further comprising at least one anchor cable (145) which is tensioned between the roof gutter (160) and a second flange (115) attached to the upright (110) at a lower level than the roof gutter (160) );
[7]
7. Roof construction according to any of the preceding claims, wherein a steel cable (310) or the like is tensioned centrally in the roof gutter (160) and wherein the foil roof (170) is fixed to said steel cable, for example by means of S-hooks ( 313).
[8]
Greenhouse (1), provided with a roof construction according to any of the preceding claims, further provided with a support structure for supporting grow gutters (10).
[9]
The greenhouse of claim 8, wherein the grow-gutter support structure comprises a horizontal support (120) extending substantially perpendicular to the ridge beams (150) and the ends of which are attached to two uprights (110); wherein the horizontal support (120) is supported by at least one touch member (141; 142; 143); and wherein at least one culture trough (10) is suspended from the horizontal support (120).
[10]
The greenhouse of claim 9, wherein the gutter (160) is coupled to the horizontal support (120).
[11]
Greenhouse according to claim 10, wherein a cultivation gutter (10) is suspended under the roof gutter (160) on the gutter (160) or carrying brackets (121) carrying on the gutter (160).
[12]
12. Greenhouse according to any of claims 9-11, wherein the horizontal support (120) at the location of the suspension of the cultivation trough (10) is bent according to a W-contour or is provided with a W-shaped bent bracket.
[13]
13. Greenhouse according to claim 12, wherein a tux-rf (PettrxTi42) is coupled to the central bend of the W-shape.
[14]
Greenhouse according to any of the preceding claims 8-13, wherein a cultivation gutter (10) is attached to a row of uprights (110).
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同族专利:
公开号 | 公开日
EP2227941A2|2010-09-15|
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NL1036694C2|2010-09-14|
GB201003730D0|2010-04-21|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

DE1034407B|1957-05-03|1958-07-17|Theodor Terlinden|Composable greenhouse with a translucent covering made of plastic film|
DD112674A1|1974-05-21|1975-04-20|
FR2471738A1|1979-12-21|1981-06-26|Serradimigli Fernand|Greenhouse roof with ventilation - has plastic film held in V=shape by tensioner hook underneath and adjustable air flap at side|
FR2490454A1|1980-09-24|1982-03-26|Provence Ets J T|Horticultural cover of suspended plastics film - carries central rail to maintain tension and channel away water without risk of tearing|
SU1483030A1|1987-05-22|1989-05-30|Центральный научно-исследовательский и проектно-экспериментальный институт промышленных зданий и сооружений|Suspension roof|
NL8902836A|1989-11-16|1991-06-17|Hans Jan Pieter Kolk|EXTRUSION PROFILE FOR APPLICATION AS A NUT OR Gutter PROFILE IN A FILM GREENHOUSE, AND A FOIL Greenhouse fitted with an EXTRUSION PROFILE.|
NL1027398C2|2004-11-02|2006-05-03|Boal Systemen Bv|Warehouse with film used to form windows in roof, uses system of springs and movable ridge beam or gutter to tension film|
WO2007052263A1|2005-11-02|2007-05-10|Netafim Ltd.|Roof support structure for a greenhouse|CN104938203B|2015-07-07|2017-08-11|东北农业大学|A kind of method for growing vegetables of the horizontal plant in vertical ridge|
GB2560169B|2017-03-01|2019-07-31|Haygrove Ltd|Gutter support|
法律状态:
2012-09-30| RE| Patent lapsed|Effective date: 20120331 |
优先权:
申请号 | 申请日 | 专利标题
NL1036694|2009-03-11|
NL1036694A|NL1036694C2|2009-03-11|2009-03-11|ROOF CONSTRUCTION.|
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