CN207131362U - 一种钻机卡钻处理装置 - Google Patents
一种钻机卡钻处理装置 Download PDFInfo
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- CN207131362U CN207131362U CN201721112462.8U CN201721112462U CN207131362U CN 207131362 U CN207131362 U CN 207131362U CN 201721112462 U CN201721112462 U CN 201721112462U CN 207131362 U CN207131362 U CN 207131362U
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CN201721112462.8U CN207131362U (zh) | 2017-08-31 | 2017-08-31 | 一种钻机卡钻处理装置 |
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CN201721112462.8U CN207131362U (zh) | 2017-08-31 | 2017-08-31 | 一种钻机卡钻处理装置 |
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CN207131362U true CN207131362U (zh) | 2018-03-23 |
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CN201721112462.8U Expired - Fee Related CN207131362U (zh) | 2017-08-31 | 2017-08-31 | 一种钻机卡钻处理装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107401388A (zh) * | 2017-08-31 | 2017-11-28 | 中交二航局第四工程有限公司 | 一种钻机卡钻处理装置和方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107401388A (zh) * | 2017-08-31 | 2017-11-28 | 中交二航局第四工程有限公司 | 一种钻机卡钻处理装置和方法 |
CN107401388B (zh) * | 2017-08-31 | 2023-08-29 | 中交二航局第四工程有限公司 | 一种钻机卡钻处理装置和方法 |
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Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Fang Chengwu Inventor after: Zhang Dihua Inventor after: Li Xiaoying Inventor after: Kang Lei Inventor after: Sun Shihui Inventor after: Wu Maoyuan Inventor after: Xu Xinan Inventor after: Wan Jinfa Inventor after: Ci Zhanggao Inventor after: Zhang Peng Inventor after: Tao Shengqiang Inventor after: Ma Huabin Inventor before: Sun Shihui Inventor before: Li Xiaoying Inventor before: Kang Lei Inventor before: Wu Maoyuan Inventor before: Xu Xinan Inventor before: Wan Jinfa Inventor before: Ci Zhanggao Inventor before: Zhang Peng Inventor before: Tao Shengqiang Inventor before: Ma Huabin Inventor before: Zhang Dihua |
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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: 20180323 Termination date: 20210831 |