CN212364423U - Resistance test tool - Google Patents
Resistance test tool Download PDFInfo
- Publication number
- CN212364423U CN212364423U CN202020247188.0U CN202020247188U CN212364423U CN 212364423 U CN212364423 U CN 212364423U CN 202020247188 U CN202020247188 U CN 202020247188U CN 212364423 U CN212364423 U CN 212364423U
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- Prior art keywords
- vertical
- slider
- radial
- contact
- metal part
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- 238000012360 testing method Methods 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 43
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 description 7
- 239000000523 sample Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000013522 software testing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The utility model discloses a resistance test tool, the resistance test tool includes base, a vertical slider and a plurality of radial slider, the quantity of radial slider with the quantity of electric contact is the same, cyclic annular metal part level is fixed in the base, vertical slider hangs directly over cyclic annular metal part, every radial slider all is equipped with branch circuit board and follows the contact pin of cyclic annular metal part's radial extension, the contact pin with divide the circuit board electric connection, vertical slider can slide along vertical direction and with every radial slider butt, so as to drive every radial slider along the horizontal direction slip, thereby make every contact pin that radial slider was established contact one the electric contact, thereby make the contact pin that radial slider was established contact electric contact, thereby switch on the return circuit between the electric contact, thereby enabling testing of the loop resistance value between the two electrical contacts.
Description
Technical Field
The utility model relates to an electronic detection equipment especially relates to a resistance test frock.
Background
During the manufacturing process, some components are designed in a ring shape and formed as a radiating member, such as a ring-shaped metal frame of a smart watch. Typically, a plurality of electrical contacts are provided at circumferentially spaced intervals on the annular components for connection to an external circuit. However, such a design presents testing problems. The conventional resistance testing tool can only move the testing probe in one direction at one time to enable the testing probe to contact with the electric contact to be tested to test the resistance. The conventional resistance testing tool cannot enable the testing probes to simultaneously contact a plurality of electric contacts distributed on the circumferential direction of the annular part so as to detect the resistance value among the electric contacts. However, the conventional method for detecting the resistance value between the electrical contacts of the annular component is to manually contact the probes of the resistance testing instrument with the electrical contacts respectively, so as to perform detection. Therefore, a testing tool capable of detecting the resistance of the annular metal part is needed to improve the detection efficiency.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a resistance test tool, which can test the resistance value between two points in the annular metal part.
The purpose of the utility model is realized by adopting the following technical scheme:
the resistance testing tool is used for testing the resistance of the annular metal part, the inner wall of the annular metal part is provided with at least two electric contacts which are spaced along the circumferential direction, the resistance testing tool comprises a base, a vertical sliding block and a plurality of radial sliding blocks, the number of the radial sliding blocks is the same as that of the electric contacts, the annular metal parts are horizontally fixed on the base, the vertical sliding blocks are suspended right above the annular metal parts, each radial sliding block is provided with a circuit splitting board and a contact pin extending along the radial direction of the annular metal parts, the contact pins are electrically connected with the sub circuit board, the vertical sliding block can slide along the vertical direction and is abutted with each radial sliding block, so as to drive each radial sliding block to slide along the horizontal direction, and the contact pin arranged on each radial sliding block is contacted with one electric contact.
Preferably, the resistance test fixture further comprises a vertical sliding plate and a cylinder, wherein the cylinder is fixedly connected to the base, the cylinder is used for driving the vertical sliding plate to move up and down vertically, the vertical sliding block extends downwards from the bottom of the vertical sliding plate, the vertical sliding block is tapered, a contact plane is arranged on the side wall of the vertical sliding block, the contact plane is gradually retracted from the top to the bottom, and the contact plane is used for abutting against the radial sliding block.
Preferably, the base is provided with an empty-avoiding groove, a guide rail is fixedly arranged below the empty-avoiding groove, the guide rail is arranged along the radial direction of the annular metal part, the radial sliding block is arranged in the empty-avoiding groove, and the radial sliding block is connected with the guide rail in a sliding manner.
Preferably, the radial slider includes horizontal portion and vertical portion, horizontal portion connect perpendicularly in vertical portion makes the radial slider is "L" shape, horizontal position in keep away the dead slot, the bottom of horizontal portion with but guide rail sliding connection, vertical portion installs branch circuit board and contact pin.
Preferably, the top edge of the vertical portion is provided with a contact radius for contacting the contact plane.
Preferably, the base comprises an upper base plate, a lower base plate, a vertical guide pillar and a vertical moving plate, the upper base plate and the lower base plate are parallel and opposite and are fixedly connected with each other through the vertical guide pillar, the vertical moving plate is slidably connected with the vertical guide pillar, the cylinder is fixedly connected with the upper base plate, a piston rod of the cylinder is fixedly connected with the vertical moving plate, and the vertical moving plate can drive the vertical sliding plate to move up and down along the vertical direction.
Preferably, the resistance test tool further comprises a buffer slider positioned between the vertical moving plate and the vertical sliding plate, a buffer spring positioned between the vertical moving plate and the buffer slider and a guide rod used for guiding the buffer slider along the vertical moving, the bottom end of the guide rod is fixedly connected with the buffer slider, the buffer slider is fixedly connected with the vertical sliding plate, the guide rod is slidably arranged on the vertical moving plate in a penetrating manner, the top end of the guide rod penetrates through the vertical moving plate and is provided with a limiting block for limiting the guide rod to fall off from the vertical moving plate, and the buffer spring is sleeved on the periphery of the guide rod.
Preferably, the base still includes mounting panel and last mounting panel down, down the mounting panel rigid coupling in the top of infrabasal plate, it locates fixedly to go up the mounting panel the top of mounting panel down, down the mounting panel with be equipped with main circuit board between the last mounting panel, main circuit board with divide the circuit board electric connection, the guide rail is located fixedly the top of mounting panel down, it has seted up to go up the mounting panel keep away the dead slot.
Preferably, the bottom of the vertical sliding plate is provided with a plurality of positioning rods, the positioning rods extend downwards, the top of the annular metal part is provided with positioning holes, and the positioning rods are used for being inserted into the positioning holes.
Preferably, a return spring is arranged between the transverse part and the groove wall of the clearance groove.
Compared with the prior art, the beneficial effects of the utility model reside in that:
through the cooperation of vertical slider and radial slider, can make the vertical thrust who comes from the cylinder turn into the power of two at least not equidirectionals on the horizontal direction to a plurality of electrical contact on the cyclic annular metal part inner wall of ability disposable test improve efficiency of software testing.
Drawings
Fig. 1 is a perspective view of the resistance testing tool according to the present invention when testing an annular metal part;
fig. 2 is a partial view of the resistance testing tool according to the present invention when testing an annular metal part;
fig. 3 is a partially exploded view of the resistance testing tool provided by the present invention;
fig. 4 is a partial view of the resistance testing tool according to the present invention when testing an annular metal part;
FIG. 5 is a perspective view of the vertical slide plate of the present invention;
fig. 6 is a partial view of the resistance testing tool according to the present invention when testing an annular metal part;
FIG. 7 is an enlarged view of a portion of FIG. 1 at A;
fig. 8 is a partial cutaway view of the resistance testing tool provided by the utility model.
In the figure: 1. an annular metal part; 11. an electrical contact; 12. positioning holes; 21. a vertical slide plate; 22. a vertical slide block; 23. a contact plane; 24. a buffer slide block; 25. vertically moving the plate; 26. a guide bar; 261. a limiting block; 27. a buffer spring; 28. positioning a rod; 31. a radial slider; 311. a transverse portion; 312. a vertical portion; 313. contact rounding; 314. a connecting portion; 315. dividing the circuit board; 316. a contact pin; 317. a return spring; 4. a cylinder; 41. an upper substrate; 42. a lower substrate; 43. a vertical guide post; 44. a piston rod; 5. positioning blocks; 6. a lower mounting plate; 61. a guide rail; 7. an upper mounting plate; 71. an empty avoiding groove; 711. a trench wall; 8. a main circuit board; 81. and (4) conducting wires.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Referring to fig. 1 and 2, the present invention provides a resistance testing tool for testing the resistance of an annular metal part 1. Referring to fig. 6, in this embodiment, the annular metal part 1 is a metal bezel of a smart watch, and the inner annular wall diameter of the annular metal part 1 is about 35 mm. The inner wall of the annular metal part 1 is provided with at least two circumferentially spaced electrical contacts 11, and in this embodiment, the number of the electrical contacts 11 is two, and the two electrical contacts are respectively an antenna signal point and an antenna ground point.
Referring to fig. 1, the resistance testing tool includes a base including an upper substrate 41, a lower substrate 42 and a vertical moving plate 25, wherein the upper substrate 41 and the lower substrate 42 are fixedly connected to each other by a vertical guide pillar 43. The vertical moving plate 25 is slidably connected to the vertical guide post 43. The cylinder 4 is fixedly connected to the upper base plate 41, and a piston rod 44 of the cylinder 4 is fixedly connected to the vertical moving plate 25. With reference to fig. 1 and 7, the resistance testing tool further includes a buffer slider 24, a plurality of guide rods 26 are fixedly connected to a top wall of the buffer slider 24, and the guide rods 26 extend upward along the vertical direction. The guide rod 26 is slidably inserted into the vertical moving plate 25, the top end of the guide rod 26 is inserted into the vertical moving plate 25, and a limit block 261 is arranged, and the limit block 261 cannot penetrate through the vertical moving plate 25. The lower section of the guide rod 26 is sleeved with a buffer spring 27, two ends of the buffer spring 27 respectively abut against the buffer slider 24 and the vertical moving plate 25, and the limit block 261 limits the guide rod 26 to fall off from the vertical moving plate 25.
Through the structure, the air cylinder 4 can drive the vertical moving plate 25 to move up and down vertically, and then the vertical moving plate 25 can drive the buffer slide block 24 to move up and down vertically through the guide rod 26 and the buffer spring 27.
Referring to fig. 1 to 3, the base further includes a lower mounting plate 6 and an upper mounting plate 7, the lower mounting plate 6 is fixedly connected to the top of the lower substrate 42, the upper mounting plate 7 is fixedly disposed above the lower mounting plate 6, and a main circuit board 8 is disposed between the lower mounting plate 6 and the upper mounting plate 7. The upper mounting plate 7 is provided with at least three positioning blocks 5, in the present embodiment, the number of the positioning blocks 5 is four, the positioning blocks 5 are uniformly distributed in a circumferential array, and the positioning blocks 5 are used for co-positioning the annular metal part 1. During testing, the annular metal part 1 is horizontally fixed on the upper mounting plate 7, namely, the opening of the annular metal part 1 faces vertically. Two clearance grooves 71 are further formed in the upper mounting plate 7, a guide rail 61 is fixedly connected to the top of the lower mounting plate 6, the guide rail 61 is located below the clearance grooves 71, and the guide rail 61 is arranged along the radial direction of the annular metal part 1.
Referring to fig. 1-2 and 5, a vertical sliding plate 21 is fixedly connected to the bottom of the buffer slide 24. The bottom of the vertical sliding plate 21 is provided with a vertical sliding block 22, and the vertical sliding block 22 extends downwards from the bottom of the vertical sliding plate 21. The vertical sliding block 22 is conical, two contact planes 23 are arranged on the side wall of the vertical sliding block 22, and the contact planes 23 are gradually retracted from top to bottom.
The bottom of the vertical sliding plate 21 is provided with a plurality of positioning rods 28, the positioning rods 28 extend downwards, the top of the annular metal part 1 is provided with positioning holes 12 (see fig. 6), and during testing, the positioning rods 28 are inserted into the positioning holes 12 to further fix the annular metal part 1.
Referring to fig. 3 and 4, the resistance testing tool further includes a radial slider 31, the radial slider 31 includes a transverse portion 311 and a vertical portion 312, and the transverse portion 311 is vertically connected to the vertical portion 312, so that the radial slider 31 is in an "L" shape. The transverse portion 311 is located in the clearance groove 71 (refer to fig. 2), and the bottom of the transverse portion 311 is slidably connected to the guide rail 61, so that the radial slider 31 can slide in the horizontal direction. In the test, the vertical portion 312 passes through the ring-shaped metal part 1. With reference to fig. 4 and 6, the top edge of the vertical portion 312 is provided with contact rounds 313, and the contact rounds 313 are used for abutting against the contact flat surfaces 23 (each contact round 313 is matched with one contact flat surface 23) so as to improve the smoothness of contact between the two.
Referring to fig. 6 and 8, each radial slider 31 is provided with a sub circuit board 315 and contact pins 316 extending in the radial direction of the ring-shaped metal part 1, the contact pins 316 are electrically connected to the sub circuit board 315, and the sub circuit board 315 is electrically connected to the main circuit board 8 through the wires 81. The contact pins 316 are used to abut the electrical contacts 11.
Referring to fig. 8, the resistance testing fixture further includes a return spring 317 between the transverse portion 311 of the radial slider 31 and the groove wall 711 of the clearance groove 71. Specifically, as shown in the figure, the outer end of the transverse portion 311 is provided with a connecting portion 314, a return spring 317 is provided between the end of the connecting portion 314 and a groove wall 711 of the clearance groove 71, and both ends of the return spring 317 are respectively connected to the end of the connecting portion 314 and the groove wall 711 of the clearance groove 71. In addition, the return spring 317 may be sleeved on the periphery of the connecting portion 314, so that two ends of the return spring 317 respectively abut against the groove walls 711 of the transverse portion 311 and the clearance groove 71.
The working principle of the resistance testing tool is as follows:
the air cylinder 4 drives the vertical moving plate 25 to move downwards along the vertical guide post 43, so that the buffer slide block 24 and the vertical slide plate 21 are driven to move downwards through the buffer spring 27 until the contact flat surface 23 of the vertical slide block 22 abuts against the contact radius 313 of the radial slide block 31.
With the continuous downward movement of the vertical moving plate 25, the contact plane 23 of the vertical slider 22 pushes the radial slider 31 to slide outward along the radial direction of the annular metal part 1, so that the contact pins 316 arranged on the two radial sliders 31 respectively contact the two circumferentially spaced electrical contacts 11 arranged on the inner wall of the annular metal part 1, and the loop between the two electrical contacts 11 is conducted, thereby the loop resistance value between the two electrical contacts 11 can be tested. In this process, since both ends of the buffer spring 27 abut against the buffer slider 24 and the vertical moving plate 25, respectively, the impact force from the cylinder 4 is buffered. During the test, the positioning rod 28 is inserted into the positioning hole 12 to position the annular metal part 1.
After the test is completed, the cylinder 4 drives the vertical moving plate 25 to move upward and reset, the vertical moving plate 25 drives the vertical slider 22 to move upward and reset through the limiting block 261, and meanwhile, the radial slider 31 can move inward and reset under the action of the elastic restoring force of the reset spring 317, so that the contact pin 316 and the electrical contact 11 are separated from each other.
In this application, through the cooperation of vertical slider 22 and radial slider 31, can make the vertical thrust who comes from cylinder 4 turn into the power of two at least not equidirectional on the horizontal direction to a plurality of electrical contact 11 on the cyclic annular metal part 1 inner wall of ability disposable test improve efficiency of software testing.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. Resistance test fixture for the resistance of test cyclic annular metal part, cyclic annular metal part's inner wall is equipped with two at least electric contacts along circumference interval, its characterized in that: resistance test fixture includes base, a vertical slider and a plurality of radial slider, the quantity of radial slider with the quantity of electrical contact is the same, cyclic annular metal part level is fixed in the base, vertical slider hangs to be located directly over cyclic annular metal part, every radial slider all is equipped with branch circuit board and edge the radial contact pin that extends of cyclic annular metal part, contact pin with divide circuit board electric connection, vertical slider can slide and with every along vertical direction radial slider butt, so as to drive every radial slider slides along the horizontal direction, thereby makes every contact pin contact one that radial slider established electrical contact.
2. The resistance testing tool of claim 1, wherein: resistance test fixture still includes vertical slide and cylinder, the cylinder rigid coupling in the base, the cylinder is used for driving vertical slide moves up, down along vertical, vertical slider certainly the bottom downwardly extending of vertical slide, vertical slider is the taper, the lateral wall of vertical slider is equipped with contact plane, contact plane top-down adduction gradually, contact plane be used for with radial slider butt.
3. The resistance testing tool according to claim 2, characterized in that: the base is equipped with the dead slot, the fixed guide rail that is equipped with in dead slot's below, the guide rail is followed annular metal part's radial setting, radial slider is located in the dead slot, radial slider with guide rail slidable ground is connected.
4. The resistance testing tool of claim 3, wherein: radial slider includes horizontal portion and vertical portion, horizontal portion connect perpendicularly in vertical portion makes radial slider is "L" shape, horizontal position in keep away the dead slot, the bottom of horizontal portion with but guide rail sliding connection, vertical portion installs divide circuit board and contact pin.
5. The resistance testing tool according to claim 4, wherein: the top edge of the vertical portion is provided with a contact radius for contacting the contact plane.
6. The resistance testing tool of claim 3, wherein: the base comprises an upper base plate, a lower base plate, a vertical guide pillar and a vertical moving plate, wherein the upper base plate and the lower base plate are parallel and opposite and are fixedly connected with each other through the vertical guide pillar, the vertical moving plate is slidably connected with the vertical guide pillar, the air cylinder is fixedly connected to the upper base plate, a piston rod of the air cylinder is fixedly connected with the vertical moving plate, and the vertical moving plate can drive the vertical sliding plate to move up and down along the vertical direction.
7. The resistance testing tool according to claim 6, wherein: resistance test fixture is still including being located vertical movable plate with buffering slider between the vertical slide, being located vertical movable plate with buffer spring between the buffering slider and be used for the guide bar of vertical removal is followed to the buffering slider, the bottom of guide bar with buffering slider rigid coupling, the buffering slider with vertical slide rigid coupling, wear to locate guide bar slidable vertical movable plate, the top of guide bar is worn out vertical movable plate to be equipped with the stopper with the restriction the guide bar is followed vertical movable plate drops, buffer spring overlaps and locates the guide bar is peripheral.
8. The resistance testing tool according to claim 6, wherein: the base still includes mounting panel and last mounting panel down, down the mounting panel rigid coupling in the top of infrabasal plate, it locates fixedly to go up the mounting panel the top of mounting panel down, down the mounting panel with go up and be equipped with main circuit board between the mounting panel, main circuit board with divide circuit board electric connection, the guide rail is located fixedly the top of mounting panel down, it has seted up to go up the mounting panel keep away the dead slot.
9. The resistance testing tool according to claim 2, characterized in that: the bottom of the vertical sliding plate is provided with a plurality of positioning rods, the positioning rods extend downwards, the top of the annular metal part is provided with positioning holes, and the positioning rods are used for being inserted into the positioning holes.
10. The resistance testing tool according to claim 4, wherein: and a return spring is arranged between the transverse part and the groove wall of the clearance groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247188.0U CN212364423U (en) | 2020-03-03 | 2020-03-03 | Resistance test tool |
| PCT/CN2020/079533 WO2021174584A1 (en) | 2020-03-03 | 2020-03-16 | Resistance test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247188.0U CN212364423U (en) | 2020-03-03 | 2020-03-03 | Resistance test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212364423U true CN212364423U (en) | 2021-01-15 |
Family
ID=74145699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020247188.0U Expired - Fee Related CN212364423U (en) | 2020-03-03 | 2020-03-03 | Resistance test tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212364423U (en) |
| WO (1) | WO2021174584A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740656A (en) * | 2021-09-28 | 2021-12-03 | 歌尔股份有限公司 | Testing device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW587703U (en) * | 2002-10-18 | 2004-05-11 | Hon Hai Prec Ind Co Ltd | Motherboard test fixture |
| CN103149442B (en) * | 2013-02-08 | 2015-04-29 | 哈尔滨工业大学 | Automatic testing device for contact resistor made of electrical contact material |
| CN205910262U (en) * | 2016-07-14 | 2017-01-25 | 东莞佐佑电子科技有限公司 | A automation equipment for testing thick film heating tube resistance value |
| CN107219398B (en) * | 2017-05-02 | 2019-12-10 | 广东长盈精密技术有限公司 | Resistance testing device |
| CN207352072U (en) * | 2017-11-15 | 2018-05-11 | 深圳市合元科技有限公司 | A kind of resistance test gauge and resistance meter |
| CN108362743A (en) * | 2018-04-03 | 2018-08-03 | 中国工程物理研究院激光聚变研究中心 | Low-temperature resistivity measuring device and its installation method |
| CN208156083U (en) * | 2018-04-28 | 2018-11-27 | 深圳市君豪自动化科技有限公司 | Resistance test jig |
| CN208672687U (en) * | 2018-08-17 | 2019-03-29 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of earth resistance drum |
| CN209513913U (en) * | 2018-11-14 | 2019-10-18 | 内蒙古中环领先半导体材料有限公司 | A kind of mold of subtest silicon chip resistivity |
| CN209961841U (en) * | 2019-03-11 | 2020-01-17 | 深圳市杰普特光电股份有限公司 | Resistance test fixture |
| CN109946522B (en) * | 2019-03-11 | 2024-05-24 | 深圳市杰普特光电股份有限公司 | Resistance test fixture |
| CN209894935U (en) * | 2019-03-28 | 2020-01-03 | 苏州美生高智能科技有限公司 | Resistance test equipment of motor driver |
-
2020
- 2020-03-03 CN CN202020247188.0U patent/CN212364423U/en not_active Expired - Fee Related
- 2020-03-16 WO PCT/CN2020/079533 patent/WO2021174584A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740656A (en) * | 2021-09-28 | 2021-12-03 | 歌尔股份有限公司 | Testing device |
| CN113740656B (en) * | 2021-09-28 | 2023-11-21 | 歌尔股份有限公司 | test device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021174584A1 (en) | 2021-09-10 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |