CN201664745U - 带压制环石油钻杆工具接头模锻锻压冲头 - Google Patents
带压制环石油钻杆工具接头模锻锻压冲头 Download PDFInfo
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CN2009201801069U CN201664745U (zh) | 2009-10-26 | 2009-10-26 | 带压制环石油钻杆工具接头模锻锻压冲头 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102357645A (zh) * | 2011-08-23 | 2012-02-22 | 江苏大学 | 圆棒料一步多向复合成形中部法兰管接头的装置及其方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102357645A (zh) * | 2011-08-23 | 2012-02-22 | 江苏大学 | 圆棒料一步多向复合成形中部法兰管接头的装置及其方法 |
CN102357645B (zh) * | 2011-08-23 | 2015-08-26 | 江苏大学 | 圆棒料一步多向复合成形中部法兰管接头的装置及其方法 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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Owner name: JIANGSU ELITE PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU RONGTAI PETROLEUM TECHNOLOGY CO., LTD. Effective date: 20150119 |
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Free format text: CORRECT: ADDRESS; FROM: 214446 WUXI, JIANGSU PROVINCE TO: 214445 WUXI, JIANGSU PROVINCE |
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Effective date of registration: 20150119 Address after: 214445 Jiangsu city of Jiangyin Province Huang Tu Zhen Shi Zhuang City Road No. 21 Patentee after: Jiangsu according to Wright Petroleum Technology Co., Ltd. Address before: Lingang New City Shi Zhuang Road Jiangyin city Jiangsu province 214446 City No. 21 Patentee before: Jiangsu Rontech Petroleum Techomology Incorporated Company |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20161026 |
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CF01 | Termination of patent right due to non-payment of annual fee |