CN205918398U - 电加热智能式机采油井密闭循环热洗装置 - Google Patents
电加热智能式机采油井密闭循环热洗装置 Download PDFInfo
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- CN205918398U CN205918398U CN201620677074.3U CN201620677074U CN205918398U CN 205918398 U CN205918398 U CN 205918398U CN 201620677074 U CN201620677074 U CN 201620677074U CN 205918398 U CN205918398 U CN 205918398U
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CN201620677074.3U CN205918398U (zh) | 2016-06-29 | 2016-06-29 | 电加热智能式机采油井密闭循环热洗装置 |
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CN201620677074.3U CN205918398U (zh) | 2016-06-29 | 2016-06-29 | 电加热智能式机采油井密闭循环热洗装置 |
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CN201620677074.3U Expired - Fee Related CN205918398U (zh) | 2016-06-29 | 2016-06-29 | 电加热智能式机采油井密闭循环热洗装置 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Li Chuchen Inventor after: Li Li Inventor after: Chu Wenxing Inventor after: Liu Baowei Inventor after: Chen Huinian Inventor after: Li Xirong Inventor before: Li Li Inventor before: Chu Wenxing Inventor before: Liu Baowei |
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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: 20170201 Termination date: 20170629 |