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Douglas Poffenberger
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Mason, OH, US
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Patents Grants
last 30 patents
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Patent Grant
Game scoring kit
Patent number
7,040,623
Issue date
May 9, 2006
Douglas Poffenberger
A63 - SPORTS GAMES AMUSEMENTS
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last 30 patents
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Patent Application
Game scoring kit
Publication number
20060061034
Publication date
Mar 23, 2006
Douglas Poffenberger
A63 - SPORTS GAMES AMUSEMENTS