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Alan B. Todd
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Arlington, VA, US
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last 30 patents
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Patent Grant
Educational amusement device which includes a game card, and method...
Patent number
5,018,975
Issue date
May 28, 1991
Alan B. Todd
A63 - SPORTS GAMES AMUSEMENTS
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Patent Grant
Unit point scoring system and scoreboard
Patent number
4,645,206
Issue date
Feb 24, 1987
Alan B. Todd
G07 - CHECKING-DEVICES