CN2313051Y - 摩擦式抽油机 - Google Patents
摩擦式抽油机 Download PDFInfo
- Publication number
- CN2313051Y CN2313051Y CN 97217513 CN97217513U CN2313051Y CN 2313051 Y CN2313051 Y CN 2313051Y CN 97217513 CN97217513 CN 97217513 CN 97217513 U CN97217513 U CN 97217513U CN 2313051 Y CN2313051 Y CN 2313051Y
- Authority
- CN
- China
- Prior art keywords
- friction
- lifting
- contained
- steel cable
- underframe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97217513 CN2313051Y (zh) | 1997-05-07 | 1997-05-07 | 摩擦式抽油机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97217513 CN2313051Y (zh) | 1997-05-07 | 1997-05-07 | 摩擦式抽油机 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2313051Y true CN2313051Y (zh) | 1999-04-07 |
Family
ID=33934059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 97217513 Expired - Lifetime CN2313051Y (zh) | 1997-05-07 | 1997-05-07 | 摩擦式抽油机 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2313051Y (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1321256C (zh) * | 2004-08-06 | 2007-06-13 | 金成群 | 抽油修井机 |
-
1997
- 1997-05-07 CN CN 97217513 patent/CN2313051Y/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1321256C (zh) * | 2004-08-06 | 2007-06-13 | 金成群 | 抽油修井机 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: CHANGCHUN XINYA PUMPING UNIT FACTORY Free format text: FORMER NAME OR ADDRESS: YAN SHUWEN |
|
CP03 | Change of name, title or address |
Address after: 130031 Changchun Dongsheng Street No. 13 room 326 Li Wenxin Patentee after: Changchun Xinya Pumping Machinery Factory Address before: 130025 No. 142 Renmin Street, Jilin, Changchun Patentee before: Yan Shuwen |
|
C56 | Change in the name or address of the patentee |
Owner name: CHANGCHUN XINYA PUMPING UNIT FACTORY Free format text: CHANGE FOR CO-PATENTEE; FORMER NAME OR ADDRESS: NONE Owner name: YAN SHUWEN Free format text: FORMER NAME OR ADDRESS: CHANGCHUN XINYA PUMPING UNIT FACTORY |
|
CP03 | Change of name, title or address |
Address after: 130025, No. 12, building 37, worker's new village, Nanling campus, Jilin University, Changchun Co-patentee after: Changchun Xinya Pumping Machinery Factory Patentee after: Yan Shuwen Address before: 130031 Changchun Dongsheng Street 13, room 326, Li Wenxin Patentee before: Changchun Xinya Pumping Machinery Factory |
|
C56 | Change in the name or address of the patentee |
Owner name: CHANGCHUN XINYA PUMPING UNIT FACTORY Free format text: FORMER NAME OR ADDRESS: YAN WENSHU Free format text: NO CO-PATENTEE; FORMER NAME OR ADDRESS: CHANGCHUN XINYA PUMPING UNIT FACTORY |
|
CP03 | Change of name, title or address |
Address after: 130031 Changchun Dongsheng Street No. 13 room 326 Li Wenxin Patentee after: Changchun Xinya Pumping Machinery Factory Address before: 130025 No. 142 Renmin Street, Changchun Co-patentee before: Changchun Xinya Pumping Machinery Factory Patentee before: Yan Wenshu |
|
C56 | Change in the name or address of the patentee | ||
CP03 | Change of name, title or address |
Address after: 130031 Jilin province Changchun Dongsheng Street No. 13 room 326 Li Wenxin Co-patentee after: Changchun golden tide mechanical and Electrical Engineering Technology Research Institute Patentee after: Changchun Xinya Pumping Machinery Factory Address before: 130031 Jilin province Changchun Dongsheng Street No. 13 room 326 Li Wenxin Patentee before: Changchun Xinya Pumping Machinery Factory |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |