PROCEDURE FOR OBTAINING AN EASY EXTRACTION FLAP, AT THE END OF AN ADHESIVE TAPE, AND DEVICE FOR CARR
专利摘要:
Procedure for obtaining an easily removable flap, at the ends of an adhesive tape, and a device for carrying out said obtaining, comprising the application of a piece of non-adhesive paper (3) adhered to the ends (10) of the tape (1); with a width (a) less than the width (A) of the tape (1) to which it is applied; and placing it in the center of the end (10) of the tape (1). The device (4) comprises, next to the reel (5) of the tape (1), a second reel (6) of paper reel (3), introducing means (7) and advance (12) of the paper web (3) cutting means (13) thereof and for adhering (14') the cut piece to the band of the adhesive tape (1) and moving and cutting means (16) of the tape (1) with the piece of paper (3). (Machine-translation by Google Translate, not legally binding) 公开号:ES2748379A1 申请号:ES201830890 申请日:2018-09-14 公开日:2020-03-16 发明作者:Jimenez Juan Bolos 申请人:Jimenez Juan Bolos; IPC主号:
专利说明:
[0001] PROCEDURE FOR OBTAINING AN EASY EXTRACTION FLAP, AT THE END OF AN ADHESIVE TAPE, AND DEVICE TO CARRY OUT [0002] [0003] OBJECT OF THE INVENTION [0004] [0005] The invention, as expressed in the statement of the present specification, refers to a process for obtaining an easily removable flap, at the ends of an adhesive tape, and to a device for carrying out said obtaining, providing, to the function for which it is intended, advantages and characteristics, which are described in detail below, which represent a remarkable novelty in the current state of the art. [0006] [0007] More specifically, the object of the invention is focused, on the one hand, on a process to obtain an easily removable flap at the ends of an adhesive tape when cutting it for use, and it can be any applicable adhesive tape to stick on any surface , so that, after being placed on the desired surface, then its removal from said surface by pulling on either end of it, it is extremely easy to do because both ends are more visible when the tape is transparent and because it remains also both ends provided with a paper flap that allows inserting the fingers but without stopping said ends of the tape being correctly fixed to the surface on which it is glued since they only cover its center and not the sides of said ends. In addition, the flap obtained with said procedure, at the same time also serves for easy removal of the initial end of the tape than on the reel in which it is dispensed after each use. On the other hand, a second aspect of the invention lies in a device specifically designed with a mechanism to carry out the flap that provides said advantages in a practical and easy way, being capable of being adapted to any adhesive tape dispenser of those already on the market. [0008] [0009] FIELD OF APPLICATION OF THE INVENTION [0010] [0011] The field of application of the present invention is framed within the sector of industry and commerce dedicated to the manufacture of adhesive tapes, at the same time covering the scope of the dispensing devices thereof and other accessories for the application thereof. [0012] [0013] BACKGROUND OF THE INVENTION [0014] [0015] Currently there are on the market multiple types and models of adhesive tapes for all kinds of uses. However, its most widespread use is to serve to close packages and packaging, which must subsequently be opened by removing the tape, and it is this operation that often poses a problem for users, on the one hand, because If the tape is transparent, which usually happens very often, it is difficult to find the ends of it, and, on the other hand, because it is often very thin materials that are difficult to grasp and take off at the ends of the tape to proceed upon his withdrawal. In industry and commerce, it often happens that it is necessary to continuously open huge quantities of sealed packages with seals and other packing tapes, so it would be desirable to have a system that would facilitate this task for the operators and workers who must carry it out. , preventing fingernails from leaving or having to use sharp tools that could cause work accidents. [0016] [0017] In addition, another of the most common problems in this type of tape is the difficulty of finding and being able to grasp and peel off the initial end of the tape when it is glued to the coil itself that is wound for use, whether it is used or no dispenser, since, even when using a dispenser, if said end has not been fixed on a support to prevent it from sticking to the coil, which often happens by mistake or carelessness, it still sticks to the coil and is difficult to find and grab. [0018] [0019] In fact, especially in adhesive tapes of a certain quality, when trying to pull the initial end of the tape glued to the coil, in addition to the time spent, important portions of tape are lost when it breaks longitudinally repeatedly. To avoid this, there is the possibility, widely known, of placing a glued paper or cardboard flap at the initial end of the tape so that it does not stick to the coil. However, this flap must be previously cut by hand and also glued by hand to the end of the tape that remains in the coil after each use and, in addition, always remember to do it before releasing said end so that it does not escape and stick to the coil. Therefore, it would also be desirable to have the means to avoid such problems. [0020] The objective of the present invention is, therefore, to provide a practical and effective solution to both problems, by developing a method and a device to obtain adhesive tape with a flap at its ends that, without diminishing its fixing capacity along all its extension, that is to say from one end to the other, once it has been cut and fixed, then it can be easily removed and, at the same time, it is easy to hold to extract it from the coil after cutting it with each use. [0021] [0022] On the other hand, and as a reference to the current state of the art, it should be noted that, at least on the part of the applicant, the existence of any other procedure or device for obtaining an easily removable flap is unknown at the ends of a Adhesive tape, or any other invention of similar application that presents technical, structural and constitutive characteristics equal to or similar to those of the one claimed herein. [0023] [0024] EXPLANATION OF THE INVENTION [0025] [0026] The procedure for obtaining an easily removable flap, at the ends of an adhesive tape, and the device for carrying out said obtaining that the invention proposes are configured, therefore, as a remarkable novelty within its field of application, since according to its implementation and exhaustively, the aforementioned objectives are satisfactorily achieved, being the characterizing details that make it possible and that distinguish them conveniently included in the final claims that accompany the present description. [0027] [0028] More specifically, what the invention proposes, as it has been pointed out previously, is a procedure to achieve that an adhesive tape, of the type that is used to close packages or packagings, among other uses, incorporates a flap at its withdrawal ends and easy removal, so that the subsequent operation of removing a portion of the tape usable to stick to a surface by pulling it at either end to open the package or whatever it is fixed or held, is very easy to carry out , thanks to the fact that both ends are clearly visible when the tape is transparent, which is usually the most frequent and reason to hinder said operation, but above all thanks to the fact that said two ends are provided with respective flaps without adhering, which allow the introduction of the fingers to easily hold and pull any one of said ends of the tape, but without, at the same time, said ends remaining correctly e fixed to the surface on which the tape has been attached. [0029] [0030] In addition, the flap that is obtained with said procedure, at the same time, is also for easy removal of the initial end of the tape that remains in the bobbin in which it is dispensed after each use. [0031] [0032] For this, and more specifically, said procedure consists of the application of a piece of non-adhesive paper that adheres and is cut together with the tape at the time of making each cut, fixing it in such a way that, a part of said piece of paper is adhered to the end of the portion of tape that is removed as a result of said cut and the other part of the paper is adhered to the end of the tape that remains in the reel, defining respective grip flaps of the tape at both ends cut from it. [0033] [0034] Thus, when making the next cut to use a next portion of tape, the initial end of it will already have a part of the paper attached and, at the final end where it is cut, a part of another piece of paper will be reapplied that, again, it will have been cut at the same time as the tape to leave its other part at the initial end of the tape that remains in the coil, repeating the same operation with each use. [0035] [0036] In addition, it is important to note that said piece of paper applied to the tape at the time of cutting it to divide it leaving a part at each cut end of the tape, in any case it has a width less than the width of the tape in which is applied in such a way that, when gluing the cut segment of the tape on the surface to which it is intended, both ends of it are perfectly fixed and only in its central part is the flap without gluing that allows the introduction of the fingers to pull it and facilitate later removal. [0037] [0038] Similarly at the end of the tape that remains in the coil, the piece of paper only covers one width of the tape and, therefore, this end is perfectly glued to the coil but allows the introduction of the fingers to facilitate its removal and reuse another length of tape. [0039] [0040] Also, when the tape is transparent, it is very easy to identify where the ends of a segment of tape stuck to a surface meet or the end of the tape remaining on the reel, since the paper used to obtain the flaps is preferably opaque paper. Furthermore, said paper can be colored and / or include printed elements of any type. [0041] [0042] In the preferred embodiment of the invention, the piece of paper that forms the flap that adheres to the tape at each cut is a rectangle about three centimeters long and a width that occupies approximately two thirds of the width of the tape. what is it for [0043] [0044] On the other hand, a second aspect of the present invention refers to a mechanical device specifically designed to carry out said procedure, that is, to perform the tape cuts of any type existing on the market by applying the pieces of paper that determine the the aforementioned flaps at its two cut ends, initial and final, each time a portion of tape is removed, without this implying that it could not be done manually but, obviously, makes it easier, having provided that said device is preferably It is designed to fit any type of adhesive tape dispenser on the market. [0045] [0046] For this adaptation, for example, the device comprises a housing whose dimensions and shape allow, in most cases, to be housed in current adhesive tape dispensers. [0047] [0048] In any case, the device comprises the incorporation, together with the standard roll of adhesive, of a roll of paper, for example from the consumables of the matrix machines, and a set of rollers for introducing the paper strip between which it runs so that they advance it by pushing a button provided behind said rollers, whose initial path corresponds to the movement of a gear rack moved by said button to determine the advance of the material and, at the same time, determines the cut of the paper strip with a blade incorporated in the end of said button, which, once cut into a rectangular piece of paper, adheres to the adhesive tape which, in turn, runs guided and pressed by a second group of upper rollers, between which an applicator roller is inserted, in this case, moving when being manually dragged by pulling the end of it by the user, dragging that is made to the point of the device where the tape cutting means are incorporated, for example, by actuating a second button that cuts by the action of a second blade incorporated in the opposite end of it. In any case, it should be noted that the device for obtaining the flap object of the invention can vary and be simpler or automated, without prejudice to the final product, which is the achievement of a flap at the end of any adhesive tape usable for closing of packages or the end of the coil in which it is wound. [0049] [0050] The described procedure for obtaining an easily removable flap, at the ends of an adhesive tape, and the device for carrying out said obtaining therefore represent an innovation of structural and constitutive characteristics unknown until now, reasons that, together with its practical utility, they provide it with sufficient foundation to obtain the exclusive privilege that is requested. [0051] [0052] DESCRIPTION OF THE DRAWINGS [0053] [0054] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, the present descriptive memory, as an integral part thereof, is accompanied by a set of plans in which, by way of illustration and non-limiting the following has been represented: [0055] [0056] Figure 1 shows a schematic perspective view of an example of a tape segment with flaps that are easy to remove at their ends, obtained by the method and device of the invention, showing its shape and arrangement once it has been cut and fixed on the surface on which it sticks. [0057] [0058] Figure number 2.- Shows a schematic perspective view of an example of a roll of adhesive tape with the easy-to-remove flap at its end obtained by the method and device of the invention, appreciating its shape and arrangement. [0059] [0060] Figure number 3.- Shows a schematic elevation view of an embodiment of the device for obtaining the easy-to-remove flap, at the ends of an adhesive tape, object of the invention, appreciating the parts and elements it comprises, as well as their configuration and arrangement. [0061] [0062] And figure number 4.- Shows a schematic elevation view of the back of a portion of tape, with the paper incorporated in the cut-off point thereof to obtain the flaps at the respective ends of the same that determines said cut. [0063] [0064] PREFERRED EMBODIMENT OF THE INVENTION [0065] [0066] In view of the aforementioned figures, and according to the numbering adopted, an example of an adhesive tape with flaps easily removable at their ends obtained by the method of the invention, and an example of a device for obtaining said flaps on the tape, which comprises the parts and elements indicated and described in detail below. [0067] [0068] Thus, as seen in Figures 1 and 2, the procedure that allows obtaining an easily removable flap (100) at the ends of any adhesive tape (1), both at the ends (10) of a segment of the adhesive tape used to fix on a surface (2), as shown in figure 1, as in the end (10) of the tape (1) that remains to be dispensed in a coil, as shown in figure 2, includes the application of a piece of non-adhesive paper (3) adhered to said ends (10) of the tape (1) and having a width (a) less than the width (A) of the tape (1) to which it is applied, of such that at said ends (10) the tape (1) is glued on both sides of the paper (3) located in the center of said end (10) acting as a flap (100) by allowing the insertion of the fingers to pull she. [0069] [0070] Furthermore, preferably, said piece of non-adhesive paper (3) adheres to the ends (10) of the tape (1) being cut together with said tape (1) at the time of making each cut thereof, fixing to the same in such a way that one part of the piece of paper (3) is adhered to the end of the portion of tape (1) that is removed as a result of said cut and the other part of the paper (3) is adhered to the end of the tape (1) that remains on the reel. [0071] [0072] Preferably, the piece of paper (3) that adheres to the ends (10) of the tape (1) is a rectangle of about three centimeters in length and its width (a) that occupies approximately two thirds of the width ( A) of the tape (1) for which it is intended. [0073] [0074] And, preferably, the piece of paper (3) is opaque, so that, when the tape (1) is transparent, it is very easy to identify the point where either of the two ends (10) of a tape segment meet. (1) pasted on a surface (2), as sample the example of figure 1, or the end (10) of the tape (1) remaining in the coil, as shown in figure 2. [0075] [0076] Finally, the procedure contemplates that, preferably, the application of the non-adhesive piece of paper (3) adhered to the ends (10) of the tape (1) is carried out by using a mechanical device (4) that, optionally , is adaptable to existing tape dispensers (1) on the market. [0077] [0078] Referring to figure 3, it is observed how, in an embodiment option, said device (4) comprises, housed next to the reel (5) of the standard coil of adhesive tape (1), the incorporation of: [0079] [0080] - a second reel (6) of non-adhesive paper reel (3), [0081] [0082] - a series of lower rollers (7) introducing the paper band (3) between which said paper (3) runs guided so as to lead it to a narrow space or channel (8) defined between two facing support surfaces, an upper one (9) and a lower one (10) in the example represented from the point of view of the observer, [0083] [0084] - a first button (11), associated in its initial travel with a gear rack mechanism (12), and a first blade (13) located at the end opposite the head of the button (11), arranged so that in each actuation of the button (11) the gear rack (12) advances the paper band (3) towards said channel (8) at the same time as the knife (13) cuts it, so that the piece of paper can adhere ( 3) rectangular cut to the band of the adhesive tape (1) which, in turn, runs after said channel (8), [0085] [0086] - a second series of upper rollers (14), including a push roller (14 '), arranged so as to guide and press the band of the adhesive tape (1) after the channel (8) in which the paper roll (3), to adhere to it once cut, [0087] [0088] - and means for moving and cutting the adhesive tape (1), in this case, manual means, moving when manually dragged by pulling the end of it by the user, and a second button (15) with a second blade (16) at its opposite end, arranged so that, when pressing on it, it cuts the tape (1) together with the piece of paper (3) by placing it in coincidence so that a part of paper (3) is adhered to each cut end (10) of the tape (1). [0089] [0090] It should be understood that said device (4) is only an example of embodiment since its configuration and elements may vary, comprising, in any case, essentially the following: [0091] [0092] - the second non-adhesive paper coil reel (6), 3 [0093] [0094] - the means for introducing (7) and for advancing (12) the paper web (3) to a space with means for cutting (13) the paper and means for adhering (14 ') the cut piece of rectangular paper (3) to the band of the adhesive tape (1) [0095] [0096] - and the displacement and cutting means (16) of the adhesive tape (1), together with the piece of paper (3) located in coincidence so that a part of paper (3) remains adhered at each cut end (10) of the tape (1). [0097] [0098] Figure 4 shows the back of a portion of the tape (1), with the paper (3) incorporated on both sides of the cut-off point thereof, allowing the flaps to be obtained at the respective ends (10) of the same that determines this cut. [0099] [0100] Once the nature of the present invention has been described, as well as the way to put it into practice, it is not considered necessary to make its explanation more extensive so that any expert in the field understands its scope and the advantages derived from it, stating that: within its essentiality, it may be put into practice in other forms of embodiment that differ in detail from that indicated by way of example, and which will also achieve the protection that is provided provided that its fundamental principle is not altered, changed or modified .
权利要求:
Claims (8) [1] 1. - PROCEDURE FOR OBTAINING AN EASILY REMOVABLE FLAP, AT THE END OF AN ADHESIVE TAPE, of any existing adhesive tape (1), both at the ends (10) of adhesive tape segments used to fix on a surface ( 2) as in the end (10) of which remains to be dispensed in a coil, characterized by comprising the application of a non-adhesive piece of paper (3) adhered to said ends (10) of the tape (1); said paper (3) having a width (a) less than the width (A) of the tape (1) to which it is applied; and placing said paper (3) in the center of the end (10) of the tape (1), it is such that at said ends (10) the tape (1) sticks on both sides of the paper (3) located in the center of said end (10) acting as a flap (100) by allowing the insertion of the fingers to pull it. [2] 2. - PROCEDURE FOR OBTAINING AN EASY EXTRACTION LAPEL, AT THE END OF A STICKER, according to claim 1, characterized in that the non-adhesive piece of paper (3) adheres to the ends (10) of the tape ( 1) cutting together with said tape (1) at the time of making each cut thereof, fixing it so that a part of the piece of paper (3) adheres to the end (10) of the tape portion (1) that is removed as a result of said cut and the other part of the paper (3) remains adhered to the end (10) of the tape (1) that remains in the coil. [3] 3. - PROCEDURE FOR OBTAINING AN EASILY REMOVABLE FLAP, AT THE END OF AN ADHESIVE TAPE, according to claim 1 or 2, characterized in that the piece of paper (3) that adheres to the ends (10) of the tape (1) is a rectangle about three centimeters long and its width (a) occupies approximately two thirds of the width (A) of the tape (1) for which it is intended. [4] 4. - PROCEDURE FOR OBTAINING AN EASILY REMOVABLE FLAP, AT THE END OF AN ADHESIVE TAPE, according to any of claims 1 to 3, characterized in that the piece of paper (3) that adheres to the ends (10) of the tape (1) is opaque. [5] 5. - PROCEDURE FOR OBTAINING AN EASY EXTRACTION LAPEL, AT THE END OF AN ADHESIVE TAPE, according to any of claims 1 to 4, characterized in that the application of the non-adhesive piece of paper (3) adhered to the ends (10) of the tape (1) are made using a mechanical device (4). [6] 6. - DEVICE, to obtain a flap of easy extraction at the ends of an adhesive tape, with the procedure described in claims 1 to 5, characterized by comprising, housed next to the reel (5) of the standard tape reel (1) adhesive, incorporating: - a second reel (6) of non-adhesive paper reel (3), - introducer (7) and advance (12) means of the paper band (3) to a space with cutting means (13) thereof and means (14 ') for adhering the cut piece of rectangular paper (3) to the band of the adhesive tape (1) - and means for moving and cutting (16) the adhesive tape (1), together with the piece of paper (3) located in coincidence so that a part of paper (3) remains adhered to each cut end (10) of the tape (1). [7] 7. - DEVICE, according to claim 6, characterized by comprising, in addition to the reel (5) of the tape reel (1): - a second reel (6) of non-adhesive paper reel (3), - a series of lower rollers (7) introducing the paper band (3) between which said paper (3) runs guided so as to lead it to a narrow space or channel (8) defined between two facing support surfaces ( 9, 10), - a first button (11), associated in its initial travel with a gear rack mechanism (12) and a first blade (13) located at the end opposite the head of the button (11), arranged so that in each actuation of the button (11) the rack (12) advances the paper band (3) towards said channel (8) at the same time as the knife (13) cuts it, to then adhere the cut rectangular piece of paper (3) to the band of the adhesive tape (1) which, in turn, runs after said channel (8), - a second series of upper rollers (14), with an applicator roller (14 '), arranged so as to guide and press the band of the adhesive tape (1) after the channel (8) in which the paper roll advances ( 3), so that it adheres to it once cut, - and means for moving and cutting (16) the adhesive tape (1) together with the piece of paper (3) [8] 8. - DEVICE, according to claim 7, characterized in that the means for moving the adhesive tape (1) together with the piece of paper (3) are means manual pulling, by pulling the end of it by the user, and the means of cutting the tape (1) with the piece of paper (3) a second button (15) with a second blade (16) at its end opposite, arranged so that, when pressing on it, it cuts the tape (1) together with the piece of paper (3) when placing it in coincidence so that a part of paper (3) remains adhered to each cut end (10) of the tape (1).
类似技术:
公开号 | 公开日 | 专利标题 EP2967178B1|2019-08-21|False eyelash dispenser ES2323473T3|2009-07-16|METHOD AND APPLIANCE OF INDEXATION OF ADHESIVE SEGMENTS AND ROLL OF ADHESIVE SEGMENTS FOR USE WITH THE SAME. US3265553A|1966-08-09|Apparatus for printing, dispensing and application of gummed labels US9248469B2|2016-02-02|Closure seal EP2902353B1|2016-12-21|A hand-held handle dispenser ES2748379A1|2020-03-16|PROCEDURE FOR OBTAINING AN EASY EXTRACTION FLAP, AT THE END OF AN ADHESIVE TAPE, AND DEVICE FOR CARRYING OUT SUCH OBTAINMENT | ES2256284T3|2006-07-16|A LAMINAR LABEL, AS WELL AS A METHOD AND AN APPLIANCE TO PRODUCE IT. US10029843B2|2018-07-24|False eyelash dispenser US3634171A|1972-01-11|Web splicing and identifying apparatus ES2358094T3|2011-05-05|SELF-ADHESIVE LABELS AND ELABORATION PROCESS. US2167908A|1939-08-01|Postage stamp container and affixer ES2136675T3|1999-12-01|PROCEDURE AND DEVICE FOR GLUING PAPER AND / OR PLASTIC PRODUCTS OR MIXED PRODUCTS WITH AN ADHESIVE MEDIA. KR101334966B1|2013-12-16|Adhesive folded manual JP5931776B2|2016-06-08|Support kit for body fluid collecting body holding sheet, method for protecting body fluid collecting body, and method for taking out body fluid collecting body KR20030015366A|2003-02-20|Methods and apparatus for dispensing labels and label strips for use in the same CN109476391B|2021-06-01|Sealing device for fixing packaging material US3510384A|1970-05-05|Film splicing apparatus US20200140721A1|2020-05-07|Tape Having Alternating Non-Adhesive Portions US20170253419A1|2017-09-07|Method For Dispensing False Eyelashes JP6936567B2|2021-09-15|Manufacturing method of storage label continuum and articles with storage label KR101768516B1|2017-08-17|Easy to use transparent adhesion tape KR20190059374A|2019-05-31|An open and close sticker for packaging pack KR200469025Y1|2013-09-12|Packaging Tape Cutting Scissors BRMU9101840Y1|2018-02-06|ARRANGEMENT IN SELF-ADHESIVE LABEL FOR USE IN AWARD COMPETITIONS ES2410656B1|2014-05-05|DEVICE AND METHOD FOR STORAGE AND DOSAGE OF SANITARY PRODUCTS
同族专利:
公开号 | 公开日 ES2748379B2|2020-07-23| US20200109316A1|2020-04-09|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 GB757587A|1951-08-01|1956-09-19|Robert Johannes Goetz|Improvements in or relating to adhesive tape, and apparatus for and methods of forming the same| US5895540A|1991-10-22|1999-04-20|Minnesota Mining And Manufacturing Company|Method for unitizing containers| JPH0885667A|1994-09-16|1996-04-02|Takeshi Suzuki|Paper storage type cutter and adhesive tape holder therewith| US6180166B1|1998-07-21|2001-01-30|Benny R. Wood|Double-sided adhesive material and method of making| CN101391715A|2007-09-19|2009-03-25|柯尼卡美能达商用科技株式会社|Device for sticking adhesive tape and method for sticking adhesive tape to film parts| JP3212666U|2017-02-21|2017-09-28|和男 豊泉|Tape cutter|
法律状态:
2020-03-16| BA2A| Patent application published|Ref document number: 2748379 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200316 | 2020-07-23| FG2A| Definitive protection|Ref document number: 2748379 Country of ref document: ES Kind code of ref document: B2 Effective date: 20200723 |
优先权:
[返回顶部]
申请号 | 申请日 | 专利标题 ES201830890A|ES2748379B2|2018-09-14|2018-09-14|PROCEDURE FOR OBTAINING AN EASY REMOVAL FLAP, AT THE ENDS OF AN ADHESIVE TAPE, AND DEVICE TO CARRY OUT SUCH OBTAINING|ES201830890A| ES2748379B2|2018-09-14|2018-09-14|PROCEDURE FOR OBTAINING AN EASY REMOVAL FLAP, AT THE ENDS OF AN ADHESIVE TAPE, AND DEVICE TO CARRY OUT SUCH OBTAINING| US16/569,880| US20200109316A1|2018-09-14|2019-09-13|Method for producing an easily removable flap at the ends of an adhesive tape and device for carrying out said production| 相关专利
Sulfonates, polymers, resist compositions and patterning process
Washing machine
Washing machine
Device for fixture finishing and tension adjusting of membrane
Structure for Equipping Band in a Plane Cathode Ray Tube
Process for preparation of 7 alpha-carboxyl 9, 11-epoxy steroids and intermediates useful therein an
|