HSIU-CHEN YANG

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Kaohsiung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Tube
- Patent number 8,250,891
- Issue date Aug 28, 2012
- Ching-Chi Chung
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
TUBE
- Publication number 20100288822
- Publication date Nov 18, 2010
- CHING-CHI CHUNG
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR