CN203516975U - 一种水平定向钻管道回拖抢险施工装置 - Google Patents
一种水平定向钻管道回拖抢险施工装置 Download PDFInfo
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- CN203516975U CN203516975U CN201320495916.XU CN201320495916U CN203516975U CN 203516975 U CN203516975 U CN 203516975U CN 201320495916 U CN201320495916 U CN 201320495916U CN 203516975 U CN203516975 U CN 203516975U
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105201417A (zh) * | 2015-09-22 | 2015-12-30 | 中国石油天然气集团公司 | 一种水平定向钻管道回拖钻杆的防回弹装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105201417A (zh) * | 2015-09-22 | 2015-12-30 | 中国石油天然气集团公司 | 一种水平定向钻管道回拖钻杆的防回弹装置 |
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C14 | Grant of patent or utility model | ||
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Effective date of registration: 20170510 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: China National Petroleum Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: CHINA PETROLEUM PIPELINE BUREAU Patentee before: China National Petroleum Corp. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20210814 |
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CF01 | Termination of patent right due to non-payment of annual fee |