CN204941393U - 随钻液压喷射岩屑床清除工具 - Google Patents
随钻液压喷射岩屑床清除工具 Download PDFInfo
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- CN204941393U CN204941393U CN201520564460.7U CN201520564460U CN204941393U CN 204941393 U CN204941393 U CN 204941393U CN 201520564460 U CN201520564460 U CN 201520564460U CN 204941393 U CN204941393 U CN 204941393U
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CN201520564460.7U CN204941393U (zh) | 2015-07-31 | 2015-07-31 | 随钻液压喷射岩屑床清除工具 |
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CN204941393U true CN204941393U (zh) | 2016-01-06 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105735918A (zh) * | 2015-07-31 | 2016-07-06 | 中国石油大学(北京) | 随钻液压喷射岩屑床清除工具与清除方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105735918A (zh) * | 2015-07-31 | 2016-07-06 | 中国石油大学(北京) | 随钻液压喷射岩屑床清除工具与清除方法 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP03 | Change of name, title or address |
Address after: 100195 China Petroleum innovation base, Shahe Town, Beijing, Changping District Patentee after: Drilling Engineering Technology Research Institute, China National Petroleum Corp. Patentee after: PETROCHINA (BEIJING) SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Patentee after: China University of Petroleum (Beijing) Address before: 102249 Beijing city Changping District Road No. 18 Patentee before: China University of Petroleum (Beijing) Patentee before: PETROCHINA (BEIJING) SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Patentee before: Drilling Engineering Technology Research Institute, China National Petroleum Corp. |
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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: 20160106 Termination date: 20180731 |