Zhi Ya He

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Zhuzhou City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Toner cartridge
- Patent number 7,729,644
- Issue date Jun 1, 2010
- Katun Corporation
- William A. Thornton
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Toner cartridge
- Publication number 20070264055
- Publication date Nov 15, 2007
- William A. Thornton
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY