Tzu-Wei Chang

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Taipei County, TW

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Patents Grantslast 30 patents

Information Patent Grant
Pick-resistant lock system
- Patent number 8,094,018
- Issue date Jan 10, 2012
- Silitek Electronic (Guangzhou) Co., Ltd.
- Tzu-Wei Chang
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
PICK-RESISTANT LOCK SYSTEM
- Publication number 20090223265
- Publication date Sep 10, 2009
- Tzu-Wei Chang
- B60 - VEHICLES IN GENERAL