CN205048126U - 气顶式抽油机润滑油加注器 - Google Patents
气顶式抽油机润滑油加注器 Download PDFInfo
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- CN205048126U CN205048126U CN201520810029.6U CN201520810029U CN205048126U CN 205048126 U CN205048126 U CN 205048126U CN 201520810029 U CN201520810029 U CN 201520810029U CN 205048126 U CN205048126 U CN 205048126U
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- cavity
- lubricating oil
- plunger
- pumping unit
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CN201520810029.6U CN205048126U (zh) | 2015-10-20 | 2015-10-20 | 气顶式抽油机润滑油加注器 |
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CN201520810029.6U CN205048126U (zh) | 2015-10-20 | 2015-10-20 | 气顶式抽油机润滑油加注器 |
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CN205048126U true CN205048126U (zh) | 2016-02-24 |
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CN201520810029.6U Expired - Fee Related CN205048126U (zh) | 2015-10-20 | 2015-10-20 | 气顶式抽油机润滑油加注器 |
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CN (1) | CN205048126U (zh) |
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2015
- 2015-10-20 CN CN201520810029.6U patent/CN205048126U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Dong Dianze Inventor after: Dai Junwei Inventor after: Guo Sheng Inventor after: Guo Xinfang Inventor after: Niu Hongyi Inventor after: Xu Jing Inventor after: Guo Weimin Inventor after: Zhang Mingjie Inventor after: Zhang Xiaodong Inventor after: Hou Fengyu Inventor after: Ma Shangjun Inventor before: Dong Dianze Inventor before: Guo Sheng Inventor before: Guo Xinfang Inventor before: Xu Jing Inventor before: Guo Weimin Inventor before: Zhang Mingjie Inventor before: Zhang Xiaodong Inventor before: Hou Fengyu Inventor before: Ma Shangjun Inventor before: Dai Junwei |
|
COR | Change of bibliographic data | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20161020 |
|
CF01 | Termination of patent right due to non-payment of annual fee |