CN205172460U - 膨胀套管用可退式安全对扣接头 - Google Patents
膨胀套管用可退式安全对扣接头 Download PDFInfo
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- CN205172460U CN205172460U CN201520785383.8U CN201520785383U CN205172460U CN 205172460 U CN205172460 U CN 205172460U CN 201520785383 U CN201520785383 U CN 201520785383U CN 205172460 U CN205172460 U CN 205172460U
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CN201520785383.8U CN205172460U (zh) | 2015-10-12 | 2015-10-12 | 膨胀套管用可退式安全对扣接头 |
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CN201520785383.8U CN205172460U (zh) | 2015-10-12 | 2015-10-12 | 膨胀套管用可退式安全对扣接头 |
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CN205172460U true CN205172460U (zh) | 2016-04-20 |
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Cited By (1)
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CN106567682A (zh) * | 2015-10-12 | 2017-04-19 | 中石化石油工程技术服务有限公司 | 膨胀套管用可退式安全对扣接头 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106567682A (zh) * | 2015-10-12 | 2017-04-19 | 中石化石油工程技术服务有限公司 | 膨胀套管用可退式安全对扣接头 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Tang Ming Inventor after: Ning Xuetao Inventor after: Ma Jianzhong Inventor after: Zhu Haibo Inventor after: Shen Xuexiang Inventor after: Tang Chenglei Inventor after: Cai Peng Inventor after: Teng Zhaozheng Inventor after: Hou Ting Inventor after: Kong Jia Inventor after: Cao Huilian Inventor after: Wu Liugen Inventor after: Zhu Wansheng Inventor before: Tang Ming Inventor before: Ma Jianzhong Inventor before: Zhu Haibo Inventor before: Shen Xuexiang Inventor before: Tang Chenglei Inventor before: Cai Peng Inventor before: Teng Zhaozheng Inventor before: Hou Ting Inventor before: Cao Huilian Inventor before: Wu Liugen Inventor before: Zhu Wansheng Inventor before: Ning Xuetao |
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COR | Change of bibliographic data | ||
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: 20160420 Termination date: 20211012 |