CN204677420U - 一种钻井泵用组装式曲轴 - Google Patents
一种钻井泵用组装式曲轴 Download PDFInfo
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- CN204677420U CN204677420U CN201520247649.3U CN201520247649U CN204677420U CN 204677420 U CN204677420 U CN 204677420U CN 201520247649 U CN201520247649 U CN 201520247649U CN 204677420 U CN204677420 U CN 204677420U
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CN201520247649.3U CN204677420U (zh) | 2015-04-22 | 2015-04-22 | 一种钻井泵用组装式曲轴 |
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CN201520247649.3U CN204677420U (zh) | 2015-04-22 | 2015-04-22 | 一种钻井泵用组装式曲轴 |
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CN204677420U true CN204677420U (zh) | 2015-09-30 |
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CN201520247649.3U Expired - Fee Related CN204677420U (zh) | 2015-04-22 | 2015-04-22 | 一种钻井泵用组装式曲轴 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109723634A (zh) * | 2017-10-29 | 2019-05-07 | 西南石油大学 | 一种三缸钻井泵用完全组装式曲轴 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109723634A (zh) * | 2017-10-29 | 2019-05-07 | 西南石油大学 | 一种三缸钻井泵用完全组装式曲轴 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210113 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No. 2 Dongfeng Road, Shaanxi, Baoji Patentee before: Baoji Oilfield Machinery 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: 20150930 Termination date: 20210422 |