David Mak Wing Kwong

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Shatin, HK

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Patents Grantslast 30 patents

Information Patent Grant
Slot car and multi-slot track combined raceway
- Patent number 8,771,034
- Issue date Jul 8, 2014
- Wing Dynasty Limited
- David Mak Wing Kwong
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SLOT CAR AND MULTI-SLOT TRACK COMBINED RACEWAY
- Publication number 20120196506
- Publication date Aug 2, 2012
- WING DYNASTY LIMITED
- David Mak Wing Kwong
- A63 - SPORTS GAMES AMUSEMENTS