CN211741434U - 一种抽油机能效检测装置 - Google Patents
一种抽油机能效检测装置 Download PDFInfo
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- CN211741434U CN211741434U CN201922094076.6U CN201922094076U CN211741434U CN 211741434 U CN211741434 U CN 211741434U CN 201922094076 U CN201922094076 U CN 201922094076U CN 211741434 U CN211741434 U CN 211741434U
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CN201922094076.6U CN211741434U (zh) | 2019-11-28 | 2019-11-28 | 一种抽油机能效检测装置 |
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CN201922094076.6U CN211741434U (zh) | 2019-11-28 | 2019-11-28 | 一种抽油机能效检测装置 |
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CN211741434U true CN211741434U (zh) | 2020-10-23 |
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CN201922094076.6U Expired - Fee Related CN211741434U (zh) | 2019-11-28 | 2019-11-28 | 一种抽油机能效检测装置 |
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2019
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201023 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 710018 Building 1, Xi'an Liren Technology Co., Ltd., southeast corner of the intersection of Fenghe road and Mingguang Road, north side of Fengcheng Second Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee before: TECHNOLOGY MONITORING CENTER OF CHANGQING PETROLEUM EXPLORATION BUREAU Co.,Ltd. |
|
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: 20201023 Termination date: 20211128 |