Cui Yongqiang

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Oil submersible pump
- Patent number 4,865,519
- Issue date Sep 12, 1989
- Institut of Engineering Thermophysics of Chinese Academy of Sciences
- Liu Diankui
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...