Chi-Shiuan Hsien

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Optical sight
- Patent number 8,449,131
- Issue date May 28, 2013
- Asia Optical Co., Inc.
- Chia-Chi Tang
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SIGHT
- Publication number 20120195023
- Publication date Aug 2, 2012
- Asia Optical Co., Inc.
- CHIA-CHI TANG
- G02 - OPTICS