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William Hart
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Palos Verdes Estates, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Toy mermaid with voice unit
Patent number
5,096,451
Issue date
Mar 17, 1992
Mattel, Inc.
Robin K. Smith
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Quick draw mechanism for figure toy
Patent number
4,750,900
Issue date
Jun 14, 1988
Mattel, Inc.
William Hart
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Slowly appearing, rapidly disappearing figure toy
Patent number
4,626,224
Issue date
Dec 2, 1986
Mattel, Inc.
John T. Benson
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Take-apart rocking stack toy
Patent number
4,604,073
Issue date
Aug 5, 1986
Mattel, Inc.
James R. Livesey
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Winding and launching device for toy vehicles
Patent number
4,511,342
Issue date
Apr 16, 1985
Mattel, Inc.
William Hart
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Toy track and bowl with car height indicator
Patent number
4,251,949
Issue date
Feb 24, 1981
Mattel, Inc.
Gordon H. Buck
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Push toy for picking up three-dimensional objects
Patent number
3,983,662
Issue date
Oct 5, 1976
Mattel, Inc.
William Hart
A63 - SPORTS GAMES AMUSEMENTS