Harry Hang Fung CHANG

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Hong Kong, CN

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Patents Applicationslast 30 patents

Information Patent Application
Actuator Gearbox
- Publication number 20180320775
- Publication date Nov 8, 2018
- JOHNSON ELECTRIC S.A.
- Harry Hang Fung CHANG
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Actuator Gearbox
- Publication number 20160369883
- Publication date Dec 22, 2016
- JOHNSON ELECTRIC S.A.
- Harry Hang Fung CHANG
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...