Yiwei Cai

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Covina, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sliding wheels for drapery
- Patent number 7,698,781
- Issue date Apr 20, 2010
- Yiwei Cai
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Sliding wheels for drapery
- Publication number 20070289090
- Publication date Dec 20, 2007
- Yiwei Cai
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES