Zhongfeng CHEN

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Patents Grantslast 30 patents

Information Patent Grant
Switch module of photoelectric integrated mechanical shaft keyboard
- Patent number 9,838,006
- Issue date Dec 5, 2017
- Zhongfeng Chen
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
SWITCH MODULE OF PHOTOELECTRIC INTEGRATED MECHANICAL SHAFT KEYBOARD
- Publication number 20170019102
- Publication date Jan 19, 2017
- Dong Guan Longideal Industrial Co., Ltd
- Zhongfeng CHEN
- G02 - OPTICS