Raymond Wai Hang Chu

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Chai Wan, HK

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for electromechanically interrupting and recon...
- Patent number 7,224,558
- Issue date May 29, 2007
- Defond Components Limited
- Raymond Wai Hang Chu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Circuit breaker
- Publication number 20030043004
- Publication date Mar 6, 2003
- Defond Manufacturing Limited
- Raymond Wai Hang Chu
- H01 - BASIC ELECTRIC ELEMENTS