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Roulette scoring device
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Patent number 5,356,141
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Issue date Oct 18, 1994
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Williams Electronics Games, Inc.
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Barry Oursler
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A63 - SPORTS GAMES AMUSEMENTS
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Rotary serial play feature
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Patent number 5,120,059
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Issue date Jun 9, 1992
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Williams Electronics Games, Inc.
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Barry Oursler
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A63 - SPORTS GAMES AMUSEMENTS
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Moving target assembly
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Patent number 4,773,646
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Issue date Sep 27, 1988
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Williams Electronics Games, Inc.
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Joseph Joos
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A63 - SPORTS GAMES AMUSEMENTS