CN201184202Y - 气体钻井气体过滤装置 - Google Patents
气体钻井气体过滤装置 Download PDFInfo
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- CN201184202Y CN201184202Y CNU2008200793272U CN200820079327U CN201184202Y CN 201184202 Y CN201184202 Y CN 201184202Y CN U2008200793272 U CNU2008200793272 U CN U2008200793272U CN 200820079327 U CN200820079327 U CN 200820079327U CN 201184202 Y CN201184202 Y CN 201184202Y
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2008200793272U CN201184202Y (zh) | 2008-03-11 | 2008-03-11 | 气体钻井气体过滤装置 |
Applications Claiming Priority (1)
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CNU2008200793272U CN201184202Y (zh) | 2008-03-11 | 2008-03-11 | 气体钻井气体过滤装置 |
Publications (1)
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CN201184202Y true CN201184202Y (zh) | 2009-01-21 |
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CNU2008200793272U Expired - Fee Related CN201184202Y (zh) | 2008-03-11 | 2008-03-11 | 气体钻井气体过滤装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102022080A (zh) * | 2010-08-18 | 2011-04-20 | 杭州嘉隆气体设备有限公司 | 一种空气钻井用脱水装置 |
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2008
- 2008-03-11 CN CNU2008200793272U patent/CN201184202Y/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102022080A (zh) * | 2010-08-18 | 2011-04-20 | 杭州嘉隆气体设备有限公司 | 一种空气钻井用脱水装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM GROUP POHAI DRILLING ENGINEERING C Free format text: FORMER OWNER: DAGANG OILFIELD GROUP CO., LTD. Effective date: 20090508 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090508 Address after: No. 106 Huang Hai Road, Tianjin economic and Technological Development Zone, post code: 300457 Patentee after: CNPC Bohai Drilling Engineering Co., Ltd. Address before: No. three, Dagang Oilfield, Tianjin, zip code: 300280 Co-patentee before: Geological Well-logging Co, Dagong Oil Field Group Patentee before: Dagang Oilfield Refco Group Ltd |
|
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: 20090121 Termination date: 20170311 |