CN206855359U - 简易式油井水泥稠化浆杯拆卸装置 - Google Patents
简易式油井水泥稠化浆杯拆卸装置 Download PDFInfo
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- CN206855359U CN206855359U CN201720679254.XU CN201720679254U CN206855359U CN 206855359 U CN206855359 U CN 206855359U CN 201720679254 U CN201720679254 U CN 201720679254U CN 206855359 U CN206855359 U CN 206855359U
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CN201720679254.XU CN206855359U (zh) | 2017-06-13 | 2017-06-13 | 简易式油井水泥稠化浆杯拆卸装置 |
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CN201720679254.XU CN206855359U (zh) | 2017-06-13 | 2017-06-13 | 简易式油井水泥稠化浆杯拆卸装置 |
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CN206855359U true CN206855359U (zh) | 2018-01-09 |
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GR01 | Patent grant | ||
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211103 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin, 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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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: 20180109 |