David Yiu

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Tin Shui Wai, HK

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Patents Grantslast 30 patents

Information Patent Grant
Drum kits and methods and apparatus for connecting components of dr...
- Patent number 7,960,632
- Issue date Jun 14, 2011
- First Act Inc.
- Mark Izen
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
DRUM KITS AND METHODS AND APPARATUS FOR CONNECTING COMPONENTS OF DR...
- Publication number 20110113948
- Publication date May 19, 2011
- First Act, Inc.
- Mark Izen
- G10 - MUSICAL INSTRUMENTS ACOUSTICS