CN203362147U - 直接加入式压裂施工蜡球管汇 - Google Patents
直接加入式压裂施工蜡球管汇 Download PDFInfo
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- CN203362147U CN203362147U CN 201320457403 CN201320457403U CN203362147U CN 203362147 U CN203362147 U CN 203362147U CN 201320457403 CN201320457403 CN 201320457403 CN 201320457403 U CN201320457403 U CN 201320457403U CN 203362147 U CN203362147 U CN 203362147U
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CN 201320457403 CN203362147U (zh) | 2013-07-30 | 2013-07-30 | 直接加入式压裂施工蜡球管汇 |
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CN 201320457403 CN203362147U (zh) | 2013-07-30 | 2013-07-30 | 直接加入式压裂施工蜡球管汇 |
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CN 201320457403 Expired - Fee Related CN203362147U (zh) | 2013-07-30 | 2013-07-30 | 直接加入式压裂施工蜡球管汇 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105134160A (zh) * | 2015-07-13 | 2015-12-09 | 中国石油大学(北京) | 在线加入球形转向材料的自动化控制装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105134160A (zh) * | 2015-07-13 | 2015-12-09 | 中国石油大学(北京) | 在线加入球形转向材料的自动化控制装置 |
CN105134160B (zh) * | 2015-07-13 | 2016-06-29 | 中国石油大学(北京) | 在线加入球形转向材料的自动化控制装置 |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent of invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhang Yongchun Inventor after: Fang Chunchang Inventor after: Meng Fanzhi Inventor after: Bian Yongjiang Inventor after: Wang Hongzhi Inventor before: Zhang Yongchun Inventor before: Fang Chunchang Inventor before: Kong Fanzhi Inventor before: Bian Yongjiang Inventor before: Wang Hongzhi |
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COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG YONGCHUN FANG CHUNCHANG KONG FANZHI BIAN YONGJIANG WANG HONGZHI TO: ZHANG YONGCHUN FANG CHUNCHANG MENG FANZHI BIAN YONGJIANG WANG HONGZHI |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20210730 |
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CF01 | Termination of patent right due to non-payment of annual fee |