CN203559816U - 钻井、修井用便捷式鼠洞管 - Google Patents
钻井、修井用便捷式鼠洞管 Download PDFInfo
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- CN203559816U CN203559816U CN201320662118.1U CN201320662118U CN203559816U CN 203559816 U CN203559816 U CN 203559816U CN 201320662118 U CN201320662118 U CN 201320662118U CN 203559816 U CN203559816 U CN 203559816U
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CN201320662118.1U CN203559816U (zh) | 2013-10-25 | 2013-10-25 | 钻井、修井用便捷式鼠洞管 |
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CN201320662118.1U CN203559816U (zh) | 2013-10-25 | 2013-10-25 | 钻井、修井用便捷式鼠洞管 |
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CN203559816U true CN203559816U (zh) | 2014-04-23 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109577885A (zh) * | 2018-12-21 | 2019-04-05 | 中国海洋石油集团有限公司 | 接钻杆或甩钻杆装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109577885A (zh) * | 2018-12-21 | 2019-04-05 | 中国海洋石油集团有限公司 | 接钻杆或甩钻杆装置 |
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C14 | Grant of patent or utility model | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20151201 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: DOWNHOLE OPERATION COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: DOWNHOLE OPERATION COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20151025 |
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EXPY | Termination of patent right or utility model |