Yubo ZHONG

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Guangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Horizontal door closer structure
- Patent number 9,422,758
- Issue date Aug 23, 2016
- Yubo Zhong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
HORIZONTAL DOOR CLOSER STRUCTURE
- Publication number 20160002966
- Publication date Jan 7, 2016
- Yubo ZHONG
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES