CN201377306Y - 钢丝绳抽油机钢丝绳自动均衡倍率机构 - Google Patents
钢丝绳抽油机钢丝绳自动均衡倍率机构 Download PDFInfo
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- CN201377306Y CN201377306Y CN200820178675U CN200820178675U CN201377306Y CN 201377306 Y CN201377306 Y CN 201377306Y CN 200820178675 U CN200820178675 U CN 200820178675U CN 200820178675 U CN200820178675 U CN 200820178675U CN 201377306 Y CN201377306 Y CN 201377306Y
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CN200820178675U CN201377306Y (zh) | 2008-11-06 | 2008-11-06 | 钢丝绳抽油机钢丝绳自动均衡倍率机构 |
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CN200820178675U CN201377306Y (zh) | 2008-11-06 | 2008-11-06 | 钢丝绳抽油机钢丝绳自动均衡倍率机构 |
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CN201377306Y true CN201377306Y (zh) | 2010-01-06 |
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CN200820178675U Expired - Fee Related CN201377306Y (zh) | 2008-11-06 | 2008-11-06 | 钢丝绳抽油机钢丝绳自动均衡倍率机构 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013071684A1 (zh) * | 2011-11-15 | 2013-05-23 | 中国石油大学(华东) | 直驱电机抽油机 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013071684A1 (zh) * | 2011-11-15 | 2013-05-23 | 中国石油大学(华东) | 直驱电机抽油机 |
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C14 | Grant of patent or utility model | ||
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Owner name: BEIJING TIANYIGU ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHAO PING Effective date: 20111008 |
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C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 100084 HAIDIAN, BEIJING TO: 100085 HAIDIAN, BEIJING |
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TR01 | Transfer of patent right |
Effective date of registration: 20111008 Address after: 100085, room 22, 1109 information road, Beijing, Haidian District Patentee after: Beijing Techeasy Energy Technology Co., Ltd. Address before: 100084 Qingyuan 3-1-303, Tsinghua University, Beijing, Haidian District Patentee before: Zhao Ping |
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DD01 | Delivery of document by public notice |
Addressee: Beijing Techeasy Energy Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20121106 |