Yuan-Chuan Cheng

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Chang Hua Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Environment protection coffin
- Patent number 6,640,401
- Issue date Nov 4, 2003
- Chung-Huang Chen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Environment protection coffin
- Publication number 20030093886
- Publication date May 22, 2003
- Chung-Huang Chen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE