Chien-Chen Chang

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Pintung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Automatic stone-tracking system
- Patent number 6,942,617
- Issue date Sep 13, 2005
- Shen-Min Liang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Automatic stone-tracking system
- Publication number 20030149352
- Publication date Aug 7, 2003
- Shen-Min Liang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE