CN202470944U - 金刚石薄壁钻跳动检测仪 - Google Patents
金刚石薄壁钻跳动检测仪 Download PDFInfo
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- CN202470944U CN202470944U CN2012200678976U CN201220067897U CN202470944U CN 202470944 U CN202470944 U CN 202470944U CN 2012200678976 U CN2012200678976 U CN 2012200678976U CN 201220067897 U CN201220067897 U CN 201220067897U CN 202470944 U CN202470944 U CN 202470944U
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CN2012200678976U CN202470944U (zh) | 2012-02-28 | 2012-02-28 | 金刚石薄壁钻跳动检测仪 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111750754A (zh) * | 2020-06-18 | 2020-10-09 | 中国石油集团渤海钻探工程有限公司 | 牙轮和金刚石钻头圆周跳动测量及密封性能试验装置 |
CN112432575A (zh) * | 2021-01-28 | 2021-03-02 | 纽科伦(新乡)起重机有限公司 | 一种葫芦卷筒精度的检测方法及装置 |
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2012
- 2012-02-28 CN CN2012200678976U patent/CN202470944U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111750754A (zh) * | 2020-06-18 | 2020-10-09 | 中国石油集团渤海钻探工程有限公司 | 牙轮和金刚石钻头圆周跳动测量及密封性能试验装置 |
CN111750754B (zh) * | 2020-06-18 | 2022-04-29 | 中国石油集团渤海钻探工程有限公司 | 牙轮和金刚石钻头圆周跳动测量及密封性能试验装置 |
CN112432575A (zh) * | 2021-01-28 | 2021-03-02 | 纽科伦(新乡)起重机有限公司 | 一种葫芦卷筒精度的检测方法及装置 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES + GRIND Free format text: FORMER OWNER: ZHENGZHOU ABRASIVE MATERIALS, ABRASIVE TOOLS, GRINDING INST. (CN) NO.1 HUASHAN R Effective date: 20131213 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20131213 Address after: 450001 Zhengzhou high tech Zone, Henan, China Street, No. 121 Patentee after: Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. Patentee after: Zhengzhou Sanmo Superhard Material Co., Ltd. Address before: 450001 Zhengzhou high tech Zone, Henan, China Street, No. 121 Patentee before: Zhengzhou Research Institute for Abrasive & Grinding Co., Ltd. Patentee before: Zhengzhou Sanmo Superhard Material Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20200228 |
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CF01 | Termination of patent right due to non-payment of annual fee |