Ma H. Wai

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Tsuen Wan, N.T., HK

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Patents Grantslast 30 patents

Information Patent Grant
Subject specific, word/phrase selectable message delivering doll or...
- Patent number 5,607,336
- Issue date Mar 4, 1997
- Lebensfeld; Steven
- Steven Lebensfeld
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Toy audio device
- Patent number 5,147,237
- Issue date Sep 15, 1992
- Toymax Inc.
- David C. K. Kwan
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Toy audio device
- Patent number 5,092,810
- Issue date Mar 3, 1992
- Lebensfeld; Steven
- David C. K. Kwan
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Toy action figures and speech and sound effects accessory therefor
- Patent number 5,073,140
- Issue date Dec 17, 1991
- Lebensfeld; Steven
- Steven Lebensfeld
- A63 - SPORTS GAMES AMUSEMENTS