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Michael Marra
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Chanhassen, MN, US
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last 30 patents
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Patent Grant
Electronic matching game apparatus including sound generating means...
Patent number
5,906,369
Issue date
May 25, 1999
Hasbro, Inc.
William H. Brennan
A63 - SPORTS GAMES AMUSEMENTS
Patents Applications
last 30 patents
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Patent Application
Apparatus for providing aural indications of the flight of a ball w...
Publication number
20040214664
Publication date
Oct 28, 2004
Michael Marra
A63 - SPORTS GAMES AMUSEMENTS