Ping-Ho Cheng

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Jhonghe City, TW

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Patents Applicationslast 30 patents

Information Patent Application
LOCKING SYSTEM
- Publication number 20090308114
- Publication date Dec 17, 2009
- DATAVAN INTERNATIONAL CORP.
- Ping-Ho Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
QUICK-DETACHABLE MOUNTING SYSTEM
- Publication number 20090310293
- Publication date Dec 17, 2009
- DATAVAN INTERNATIONAL CORP.
- Ping-Ho Cheng
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...