Bian Meijuan

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Camera interlocks that ensure proper movement of film
- Patent number 6,941,065
- Issue date Sep 6, 2005
- Concord Camera Corp.
- Xu Zhihai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Camera interlocks that ensure proper movement of film
- Publication number 20040037551
- Publication date Feb 26, 2004
- Xu Zhihai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY