CN204053964U - 扶正器及流管磨套拆卸装置 - Google Patents
扶正器及流管磨套拆卸装置 Download PDFInfo
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- CN204053964U CN204053964U CN201420417369.8U CN201420417369U CN204053964U CN 204053964 U CN204053964 U CN 204053964U CN 201420417369 U CN201420417369 U CN 201420417369U CN 204053964 U CN204053964 U CN 204053964U
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- centralizer
- grinding set
- fixture
- diameter
- fixed support
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Application Number | Priority Date | Filing Date | Title |
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CN201420417369.8U CN204053964U (zh) | 2014-07-28 | 2014-07-28 | 扶正器及流管磨套拆卸装置 |
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CN201420417369.8U CN204053964U (zh) | 2014-07-28 | 2014-07-28 | 扶正器及流管磨套拆卸装置 |
Publications (1)
Publication Number | Publication Date |
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CN204053964U true CN204053964U (zh) | 2014-12-31 |
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CN201420417369.8U Expired - Fee Related CN204053964U (zh) | 2014-07-28 | 2014-07-28 | 扶正器及流管磨套拆卸装置 |
Country Status (1)
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CN (1) | CN204053964U (zh) |
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2014
- 2014-07-28 CN CN201420417369.8U patent/CN204053964U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210126 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: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20210728 |
|
CF01 | Termination of patent right due to non-payment of annual fee |