Chun Chen Lai

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Taichung County, TW

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Patents Grantslast 30 patents

Information Patent Grant
Surface grinder for ball of ball valve
- Patent number 7,862,403
- Issue date Jan 4, 2011
- Chun Chen Lai
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Surface grinder for ball of ball valve
- Publication number 20090098811
- Publication date Apr 16, 2009
- Chun Chen Lai
- B24 - GRINDING POLISHING