Yangyun Zeng

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Guangdong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for restoring imaging cartridge chip
- Patent number 9,031,452
- Issue date May 12, 2015
- Apex Microelectronics Co., Ltd.
- Yangyun Zeng
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Method for Restoring Imaging Cartridge Chip
- Publication number 20140056611
- Publication date Feb 27, 2014
- Yangyun Zeng
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS