Xinyi Gu

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Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ring rack oil pumping machine
- Patent number 8,047,821
- Issue date Nov 1, 2011
- Sinopec Group, Shengli Petroleum Administration Transport Corporation
- Xinyi Gu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Ring Rack Oil Pumping Machine
- Publication number 20090266186
- Publication date Oct 29, 2009
- Sinopec Group, Shengli Petroleum Administration Transport Corporation
- Xinyi Gu
- E21 - EARTH DRILLING MINING