Yunfeng Li

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Small-spacing LED screen
- Patent number 9,618,192
- Issue date Apr 11, 2017
- Jinfeng He
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Small-spacing LED Screen
- Publication number 20170023215
- Publication date Jan 26, 2017
- UNILUMIN GROUP CO., LTD.
- Jinfeng HE
- F21 - LIGHTING