Yik Sheung Ng

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Shuttlecock
- Patent number 8,147,359
- Issue date Apr 3, 2012
- Yik Sheung Ng
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Shuttlecock
- Publication number 20120040786
- Publication date Feb 16, 2012
- Yik Sheung Ng
- A63 - SPORTS GAMES AMUSEMENTS