• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A gemstone positioning and analysis system (10) is described to measure various features of a gemstone (46). The system includes a narrow band spectrophotometer (50) that allows the authenticity of the gem to be determined together with other features of the gem. A transparent mounting plate (32) is also included which has a series of markings (33) to facilitate centering of the gem within an analysis chamber. An alignment device (40) is included which has at least one linear pusher (42) and is adapted to automatically center the gem at the center point of the transparent mounting plate.
    公开号:BE1020081A5
    申请号:E201200022
    申请日:2012-01-11
    公开日:2013-04-02
    发明作者:Randall Wagner；Kurt P Schoeckert
    申请人:Gemex Systems Inc；
    IPC主号:
    专利说明:

    Gemstone positioning and analysis system
    Reference to related application
    This application is based on and invokes the priority of U.S. Provisional Patent Application No. 61/477 267 filed April 20, 2011, which is herein incorporated by reference in its entirety for all purposes.
    FIELD OF THE INVENTION
    The present invention relates generally to the field of gemstone evaluation systems. More specifically, the present invention relates to a gemstone evaluation system with the added feature of automatically centering a gemstone and the addition of a narrowband spectrophotometer to determine the authenticity of the gemstone.
    Background
    The commercial value of a gemstone depends on a number of factors, including the weight, the cut, the clarity, the color and, perhaps most importantly, the authenticity of the gemstone. Traditionally, evaluating those and other such characteristics was the work of highly skilled experts, known as "qualified gemologists." A number of computer-controlled machines have recently been developed to perform many of the same functions as qualified gemologists. The machines are more consistent and accurate when measuring very small details and features present in precious stones. The machines are particularly used to measure differences in color that are noticeable to even the highly trained eye of a qualified gemologist. One such machine is described in U.S. Patent No. 5,615,005, which is herein incorporated by reference in its entirety for all purposes.
    Machines such as those described in Patent No. 5,615,005 typically include a light source, optical bandpass filter, camera or broadband spectrophotometer, and analysis chamber. An operator places the gem in the observation chamber and light from the light source is sent through the band pass filter so that a specific light wavelength illuminates the gem. The light source can also be manipulated so that the light beam illuminates the gem from different angles, thus performing the same test that a gem expert would perform manually. The cameras currently used in gemstone evaluation machines are in particular CCD (Charged Coupled Device) cameras or broadband spectrophotometers. These cameras are an improvement on the human eye, but cannot detect the difference between, for example, a diamond or a cubic zirconium stone. On the contrary, the machines currently used in gemstone evaluation can only determine where the gem ends up on a color / brightness scale. To determine whether a gem such as a diamond is authentic (not man-made or machined), a separate test must be performed, often in a separate lab. The individual test may involve narrowband spectrophotometry that is focused on a range of wavelengths known in the art, in particular with a scanning band of 1-3 nm wide.
    Summary
    The present invention relates to a gemstone positioning and analysis system to measure features of a gemstone that includes a cabinet with an analysis chamber adapted to receive the gemstone. The analysis chamber has upper and lower hemispherical sections with a mounting plate between the hemispherical sections. The hemispherical portions each have reflective insides. The lower hemispherical portion has an opening at its lower point that is adapted to allow light to pass through the analysis chamber. The transparent mounting plate includes a series of markings to facilitate centering of the gem within the analysis chamber. An alignment device is included that has at least one linear pusher and is adapted to automatically center the gem on the center point of the transparent mounting plate. A movable light source is adapted to illuminate the gem from a number of angles and a camera is adapted to record images of the gem. The camera is further adapted to provide data to a computer system that analyzes the data and outputs the material characteristics of the gem.
    The gemstone evaluation system of the present invention includes the automatic positioning of a gemstone and a narrowband spectrophotometer ("NBS"), which allows the machine to detect material characteristics of the gemstone, such as whether it is natural or artificial. The automatic positioning function solves the problem that an operator places an gem inaccurately on the observation plane, which can result in incorrect test results. The addition of an NBS also allows a user to simultaneously perform the tests of the conventional system and the additional tests that are now performed by a secondary process. Conducting the tests together greatly reduces the risk of cheating or deception that, unfortunately, there is when the tests are performed separately, often in different labs. Upon completion of the analysis, the user receives a report showing the characteristics of the gem, including the results of the narrowband spectrophotometer analysis, along with an image of the gem. Such a . report virtually excludes the possibility of deception that currently exists.
    Those skilled in the art understand that one or more aspects of this invention may meet certain objectives, while one or more other aspects may lead to certain other objectives. Other objects, features, usefulness and advantages of the present invention appear in this summary and descriptions of the described embodiment and are readily apparent to those skilled in the art. Such objectives, features, usefulness and benefits are apparent from the above as taken together with the accompanying figures and all reasonable conclusions to be drawn therefrom.
    BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of one embodiment of a gemstone evaluation system according to the invention; FIG. 2 is a perspective view of a gemstone positioning driver according to the gemstone evaluation system of FIG. 1, with the actuator in an open position.
    FIG. 3 is another perspective view of the gemstone positioning actuator of FIG. 2, with the actuator in an extended position; FIG. 4 is a detail plan view of the gemstone positioning actuator of FIG. 2 with the actuator in coupled position with the gem; FIG. 4A is another detail top view of the gemstone positioning actuator of FIG. 2 with the actuator disconnected from the gem; FIG. 5 is another detail plan view of the gemstone positioning actuator of FIG. 2 with the actuator in a centered position; FIG. 6 is a perspective view of another embodiment of a gemstone evaluation system according to the invention; FIG. 7 is a perspective view of a gemstone positioning driver according to the gemstone evaluation system of FIG. 6, with the actuator in a retracted position; .
    FIG. 8 is a perspective view of a gemstone positioning driver according to the gemstone evaluation system of FIG. 6, with the actuator in an extended position; FIG. 9 is a perspective view of another embodiment of a gemstone positioning actuator according to the present invention with the actuator in an open position; FIG. 9A is a detail top view of the gemstone positioning actuator of FIG.
    9 linking the gem; FIG. 10 is another perspective view of the gemstone positioning actuator of FIG. 9 with the actuator in a closed position; and FIG. 10A is a detail top view of the gemstone positioning actuator of FIG. 10.
    Detailed description
    Let us now look at FIG. 1, a perspective view of the gemstone color evaluation system or device 10 constructed in accordance with the present invention is shown. The device 10 comprises a lighting and signal recording box 12.
    The cabinet 12 contains a light source 14 and a control system 16. The control system 16 controls a light movement system 18. The cabinet 12 further comprises an analysis chamber 20 and an annular light ring 22. The annular light ring 22 is mounted on a platform 24 moved by the light movement system 18. Light ring 22 can be illuminated in a variety of ways, but in the embodiment shown, light is transported by means of a fiber optic connector 25 from the light source 14 to the annular light ring 22.
    Analysis chamber 20 is a two-part unit including an upper hemispherical element 26 and a partially lower hemispheric element 28 that form a sphere, with a reflective coating on the inside of upper element 26 and lower element 28. A single entrance / exit opening 30 is in the lower part of the lower element. The input / output aperture 30 is of a suitable size to allow light to enter into the analysis chamber 20 and to allow a CCD camera assembly 34 to view the gem 46 in the analysis chamber 20, but is sufficiently small for light to be effectively reflected within the analysis chamber 20 for accurate provide test results. Centered in the chamber is a glass plate 32 on which a gemstone to be evaluated is placed with the table side down. Orientation with the table side down is preferred, since gems are currently graded by refracted light through the gemstone table. Although glass is preferred, other transparent, transparent materials can be used in any supporting structure. Etched or otherwise marked on the glass plate 32, there is a cartridge 33 that allows the system to accurately measure the size and position of the gemstone 46 at any time. In the embodiment shown, the pattern 33 is a roating pattern, but any suitable pattern could be used without departing from the invention. A center 36 is located in the center of the cartridge 33.
    The light moving system 18 is configured to move the annular light ring 22 such that, when the platform 24 moves, the light from the annular light ring 22 illuminates a gemstone 46 from a variety of angles. Precious stones are usually viewed by gemologists from multiple angles, relative to light sources, to obtain the quality and color of a precious stone. The light source with multiple positions provides the device with the same powers.
    Immediately below the ring-shaped light ring 22 is placed a CCD camera assembly 34 which comprises a fixed focal length lens 31, a band-pass filter 37 and a CCD camera 39. The CCD camera assembly 34 is oriented to be centered on the analysis chamber 20. The center lines of the analysis chamber 20, annular light ring 22, and CCD camera assembly 34 are intended to be common. The CCD camera assembly 34 is used to analyze both the quality and the color of the gemstone 46, but is also used to accurately position the gemstone 46 so that the centerline of the gemstone 46 is also annular with the centerlines of the analysis chamber 20. light ring 22 and CCD camera assembly 34 is common.
    An alignment device 40 is adapted to automatically align the gemstone with that common centerline, without the operator having to determine the position of that centerline and attempting to manually align the gemstone's centerline with it simply by hand placement of the gemstone. The alignment device 40 comprises a pusher element 42, driven by a linear driver 44, in turn coupled to and controlled by the control system 16. FIG. 2 shows the pusher element 42 in the retracted position and FIG. 3 shows the pusher element 42 in the extended position.
    As shown in FIG. 4-5, a gemstone 46 is placed on the glass plate 32 and the alignment device 40 is driven so that the linear actuator 44 coupled to the pusher element extends, so that the pusher element is coupled to the gemstone 46, causing it to move slightly . The pusher element 42 is then retracted, thereby disengaging from the gem 46. By moving the pusher element 42 away from the gem 46, the software comprising in the invention uses the CCD camera assembly 34 that is part of a computer imaging system 35 to adjust the diameter of the gem 46 and the offset of the gem 46 across the centerline. measure. The computer imaging system 35 measures the diameter of the gemstone 46 by sensing the outer edge of the gemstone 46 and establishes virtual tangent lines 38 on the opposite sides of the gemstone 46. When the diameter is calculated, the system can determine how far the center of the gemstone 46 from the center 36 of the cartridge 33 on the glass plate 32 is removed. Upon completion of the measurement, the alignment device 40 extends the push member 42, thereby re-engaging the gemstone 46 and displacing the gemstone in alignment with the centerline. FIG. 4 shows the gemstone 46 in a position not on the centerline, FIG. 4A shows the pusher element 42 disconnected from the gem 46 and FIG. 5 shows the pusher element 42 that has moved the gem 46 to the centerline. Thus, automatic positioning is achieved using the computer imaging system 35 to "see" the gem 46 on the glass plate 32.
    Let us now look at FIG. 6, then a further improvement is shown, wherein a narrowband spectrophotometer ("NBS") 50 is added inside the cabinet 12. A probe 52 is preferably mounted on the pusher element 42 to be mounted sufficiently close to the gemstone 46 and is coupled to the NBS 50 through a fiber optic connector 54 to allow the NBS 50 to analyze the gemstone. FIG. 7 and 8 show a schematic arrangement of the NBS 50, connecter 54 and probe 52. The NBS in the illustrated embodiment is a scanning NBS that generates an output over a range of frequencies. The software then analyzes the output of the NBS for peaks that indicate a specific light wavelength absorbed by the gem 46. With that data, the system can determine whether the gem 46 is authentic. Other NBSs, i.e. non-scanning NBSs, can be used without departing from the invention. FIG. 7 shows the pusher element 42 and probe 52 in the retracted position, while FIG. 8 shows the pusher element 42 and probe 52 in the extended position, whereby the NBS 50 is made possible to perform its analysis.
    FIG. 9-10 show an alternative alignment device 60 with two pushers that centers the gem 46 using two pushers 62. Each pusher 62 is coupled to a frame 63, each frame 63 having a rack 64 at one end. The racks 64 engage with a suitable pinion 66 which, when rotated, moves the pushers 62 to or away from the centerline. The two-pusher alignment device 60 can be manually or electrically driven by an external power source, such as an electric motor, coupled to rotate the pinion in one direction or another. To manually drive the alignment device 60 with two pushers, an operator manipulates a thumb lever 68 extending from one of the frames 63. A spring 69 is attached to one of the frames 63 and is adapted to cause the alignment device 60 to deviate into the open position. Thus, when an operator releases the thumb lever 68, the alignment device 60 automatically returns to the open position. If the alignment device 60 with two pushers is driven by an external power source, an automatic alignment system similar to that described in the previous embodiment can be used.
    Although the invention is described herein in what is considered to be the most practical and most preferred embodiments, it is to be understood that the invention is not intended to be limited to the specific embodiments set forth above. On the contrary, it is acknowledged that those skilled in the art of the invention can make changes without departing from the meaning or scope of the invention and, consequently, the invention must include all reasonable equivalents of the invention. subject of the appended claims and the description of the invention are understood herein.
    权利要求:
    Claims (15)
    [1]
    A gemstone analysis system for measuring characteristics of a gemstone, comprising: a mounting plate including a center point, for supporting the gemstone; a narrow band spectrophotometer adapted to measure the light absorption capacity of the gem; an alignment device, wherein the alignment device comprises at least one linear pusher and is adapted to automatically position the gem at the center point of the mounting plate; wherein the linear pusher comprises a pusher element on which a probe is mounted, and wherein the probe is connected to the narrowband spectrophotometer; a movable light source adapted to illuminate the gem from a number of angles; a broadband spectrophotometer adapted to record images of the gem; and wherein the broadband spectrophotometer and narrowband spectrophotometer are further adapted to provide data to a computer system adapted to analyze the data and perform material characteristics of the gem.
    [2]
    The gemstone analysis system of claim 1, wherein the probe is connected to the narrowband spectrometer through a fiber optic connector.
    [3]
    A gemstone positioning and analysis system for measuring characteristics of a gemstone, comprising: a cabinet; a transparent mounting plate including a series of markings to facilitate centering of the gem on the mounting plate; an alignment device with. including at least one linear pusher in the vicinity of the transparent mounting plate and capable of moving the gem on the mounting plate; a camera adapted to record images of the gem; and a control system adapted to use images of the gem from the camera and control the alignment device to automatically center the gem at the center point of the transparent mounting plate.
    [4]
    A gemstone positioning and analysis system according to claim 3, wherein the control system comprises a computer system adapted to analyze the images from the camera and control the alignment device to automatically center the gemstone at the center point of the transparent mounting plate.
    [5]
    The gemstone positioning and analysis system of claim 3, or claim 4, further comprising a narrowband spectrophotometer adapted to measure the light absorption capacity of the gemstone.
    [6]
    A gemstone positioning and analysis system for measuring features of a gemstone, comprising: a cabinet including an analysis room adapted to receive the gemstone; wherein the analysis chamber has upper and lower hemispherical portions with a transparent mounting plate between the hemispherical portions; wherein the hemispherical portions have reflective insides; the lower hemispherical portion having an aperture at its lower point, the aperture being adapted to allow light to pass through the analysis chamber; wherein the transparent mounting plate comprises a series of markings to facilitate centering of the gem within the analysis chamber; an alignment device including at least one linear pusher and adapted to automatically center the gem on the center point of the transparent mounting plate; a movable light source adapted to illuminate the gem from a number of angles; a camera adapted to record images of the gem; and wherein the camera is further adapted to provide data to a computer system adapted to analyze the data and perform material characteristics of the gem.
    [7]
    The gemstone positioning and analysis system of claim 6, wherein the alignment device comprises a single push arm, wherein the push arm is coupled to a computer-controlled linear actuator.
    [8]
    A gemstone positioning and analysis system according to claim 6, wherein the alignment device comprises two push arms, wherein the push arms are manually manipulated using a gear rack.
    [9]
    A gemstone positioning and analysis system for measuring characteristics of a gemstone, comprising: a cabinet including an analysis room adapted to receive the gemstone; wherein the analysis chamber has upper and lower hemispherical portions with a transparent mounting plate between the hemispherical portions; wherein the hemispherical portions have reflective insides; the lower hemispherical portion having an opening at its lower point, the opening being adapted to allow light to pass into the analysis chamber; wherein the transparent mounting plate comprises a series of markings to facilitate centering of the gem within the analysis chamber; . an alignment device including at least one linear pusher and adapted to automatically center the gem on the center point of the transparent mounting plate; a narrow band spectrophotometer adapted to measure the light absorption capacity of the gem; a movable light source adapted to illuminate the gem from a number of angles; a camera adapted to capture images of the gem. to take; and wherein the camera is further adapted to provide data to a computer system adapted to analyze the data and perform material characteristics of the gem.
    [10]
    The gemstone positioning and analysis system of claim 9, wherein the alignment device comprises a single push arm, the push arm being coupled to a computer-controlled linear actuator.
    [11]
    A gemstone positioning and analysis system according to claim 9, wherein the alignment device comprises two push arms, wherein the push arms are manipulated manually using a gear rack.
    [12]
    A method for analyzing the material properties of a gem, comprising the steps of: placing a gem in an analysis chamber with a transparent mounting plate for supporting the gem; automatically aligning the gem on the center point of the transparent mounting plate by means of an alignment device, the alignment device comprising at least one linear pusher with pusher element and being adapted to automatically position the gem on the center point of the mounting plate; illuminating the analysis room and the gem from a number of angles; recording images of the gem; analyzing the light absorbency of the gemstone using a narrowband spectrophotometer, the narrowband spectrophotometer being connected to a probe mounted on the pusher element; and using a computer system to analyze the images of the gem to determine certain material qualities and characteristics of the gem. • -
    [13]
    The method of claim 12 further comprising the step of automatically generating a report showing the qualities and characteristics of the gem.
    [14]
    The method of claim 12, or claim 13, further comprising the steps of: using a camera to automatically detect the center point of the gem and the center point of the transparent mounting plate; and automatically driving a linear alignment device to align the center of the gem with the center of the transparent mounting plate.
    [15]
    A gemstone positioning and analysis system for measuring features of a gemstone, comprising: a cabinet; an analysis room mounted in the cabinet and with an opening adapted to allow light to pass through the analysis room and with a center; a transparent mounting plate positioned within the analysis chamber and with a series of markings including a center; a movable light source adapted to illuminate the gem from a number of angles through the aperture and with a center; wherein the centers of the analysis room, the transparent mounting plate and the movable light source are arranged substantially along a common centerline; a camera mounted within the cabinet and arranged so that its center line substantially coincides with the common center line, and adapted to take images of the gem; wherein the camera is further adapted to provide data to a computer system adapted to analyze the data and perform material characteristics of the gem; and an alignment device including at least one linear pusher adapted to automatically center the gem on the centerline.
    类似技术:
    公开号 | 公开日 | 专利标题
    BE1020081A5|2013-04-02|GEMSTONE POSITIONING AND ANALYSIS SYSTEM.
    CN104950429B|2019-01-04|Including for providing repeatedly the 3D microscope of the pluggable component of imaging and measurement capability
    US8269966B2|2012-09-18|Fluorescence meter
    AU2006293071B2|2010-12-16|Optical measuring system
    JP2019508710A|2019-03-28|System and method for label free cytometry based on Brillouin light scattering
    KR20150008453A|2015-01-22|Surface features mapping
    CN107667287A|2018-02-06|Automatic defect detection and mapping for optical filter
    US20210341353A1|2021-11-04|System and method for inspecting optical power and thickness of ophthalmic lenses immersed in a solution
    CN106990052A|2017-07-28|Optical characteristics determines device and optical system
    US9239237B2|2016-01-19|Optical alignment apparatus and methodology for a video based metrology tool
    US7235807B2|2007-06-26|Near field analysis apparatus having irradiation-side guide light and light-collection-side guide light
    US20150346108A1|2015-12-03|Gemstone Registration and Recovery System, and Systems for Evaluating the Light Performance of a Gemstone and Capturing Forensic Characteristics of a Gemstone
    CN105890753B|2017-12-01|Raman spectrometer autofocus system
    WO2015183947A1|2015-12-03|Gemstone registration and recovery system, and systems for evaluating the light performance of a gemstone and capturing forensic characteristics of a gemstone
    EP2930496A1|2015-10-14|Optical micro-spectrometry system and method for analyzing microscopic objects in a fluidic sample
    JP5363199B2|2013-12-11|Microscopic total reflection measuring device
    US8675194B2|2014-03-18|Apparatus for measuring the retroreflectance of materials
    KR100722150B1|2007-05-28|Lensmeter
    CN207779900U|2018-08-28|Raman spectrum detection device based on reflected optical power and image recognition
    KR20180119527A|2018-11-02|Intraocular lens inspection
    JP3179136B2|2001-06-25|Microscopic infrared ATR measuring device
    RU2271556C1|2006-03-10|Video microscope and method for image registration using said video microscope
    JP2021535373A|2021-12-16|Image of surface color and liquid contact angle
    KR20170099465A|2017-09-01|Device for blood sample analysis using an in-line holographic image analysis
    US6709109B1|2004-03-23|Differential spectroscopic imaging of the human retina
    同族专利:
    公开号 | 公开日
    GB2490187A|2012-10-24|
    CN102749331B|2017-12-01|
    IL216895A|2019-03-31|
    GB201121140D0|2012-01-18|
    IL216895D0|2012-06-28|
    CN102749331A|2012-10-24|
    GB2490187B|2017-06-21|
    US20120268728A1|2012-10-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1416568A|1972-10-20|1975-12-03|Wilson S S|Method of and apparatus for evaluating registering andidentifying gemstones|
    JPH02106296A|1988-10-14|1990-04-18|Seiko Instr Inc|Handling device having posture changing mechanism|
    US5615005A|1995-01-23|1997-03-25|Ugts, Inc.|Gemstone evaluation system|
    US20100220311A1|2009-02-27|2010-09-02|Matt Hall|Method and apparatus for rapidly cooling a gem, including two stage cooling|
    WO2011122989A1|2010-03-29|2011-10-06|Nizienko Yuri Konstantinovich|Method for positioning and detecting an invisible mark and detector for implementing same|
    JPS5015597Y1|1969-08-24|1975-05-15|
    US4259011A|1979-11-05|1981-03-31|Crumm John C|Optical gem analyzer|
    US4394580A|1981-07-27|1983-07-19|L.C.E. Ltd.|Method and apparatus for analyzing gems|
    IL92133A|1989-10-27|1993-01-31|Uri Neta Haifa And Aharon Yifr|Method and apparatus for identifying gemstones, particularly diamonds|
    GB2286251B|1994-01-25|1997-07-09|Gersan Ets|Examining a diamond for synthetic diamond|
    GB9418050D0|1994-09-07|1994-10-26|Gersan Ets|Examining a diamond|
    US5932119A|1996-01-05|1999-08-03|Lazare Kaplan International, Inc.|Laser marking system|
    JP3646297B2|1996-11-15|2005-05-11|住友電気工業株式会社|Method and apparatus for automatic selection of crystals|
    US6980283B1|1997-12-18|2005-12-27|Imagestatistics, Inc.|Method and associated apparatus for the standardized grading of gemstones|
    GB0017639D0|2000-07-18|2000-09-06|Gersan Ets|Instrument for examining a gemstone|
    US20030223054A1|2002-05-29|2003-12-04|Natural Crystal Information Systems|Method and apparatus for identifying gemstones|
    WO2005003743A2|2003-05-20|2005-01-13|University Of Maryland|Apparatus and methods for surface plasmon-coupled directional emission|
    IL156808D0|2003-07-07|2004-02-08|Sarin Technologies Ltd|Method and system for gemstone color prediction|
    US7557917B1|2004-05-08|2009-07-07|Collectors Universe, Inc.|System and method for analysis of gemstones|
    BE1016537A3|2004-11-10|2007-01-09|Wetenschappelijk En Tech Onder|METHOD FOR DISTINCTING COLORLESS AND ALMOST COLORLESS DIAMONDS AND ARRANGEMENT FOR CARRYING OUT THIS METHOD.|
    EP1764610A1|2005-09-14|2007-03-21|Overseas Diamonds Technologies N.V.|Improvements in gemstone viewing methods and apparatus|
    CN201210135Y|2008-06-17|2009-03-18|深圳市莫廷影像技术有限公司|Sample moving platform for jewelry detector|EP3028034A4|2013-06-18|2017-05-03|Arvindbhai Lavjibhai Patel|Method and device for gemstone evolution|
    GB2516297A|2013-07-18|2015-01-21|De Beers Centenary AG|Measuring parameters of a cut gemstone|
    IT201700004661A1|2017-01-17|2018-07-17|Gemchrom S R L|DEVICE FOR THE MEASUREMENT OF STONE TRANSMITTANCE, DIAMONDS IN PARTICULAR|
    CN107727657B|2017-10-20|2021-07-13|中国地质大学（武汉）|Diamond identity authentication instrument|
    CN107825280A|2017-11-16|2018-03-23|刘永红|One kind shooting jewel grinding-forming machine|
    法律状态:
    2020-10-15| MM| Lapsed because of non-payment of the annual fee|Effective date: 20200131 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161477267P| true| 2011-04-20|2011-04-20|
    US201161477267|2011-04-20|
    US13/277,912|US20120268728A1|2011-04-20|2011-10-20|Gem positioning and analysis system|
    US201113277912|2011-10-20|
    [返回顶部]