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Game playfield mounting system
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Patent number 5,536,082
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Issue date Jul 16, 1996
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Williams Electronics Games, Inc.
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Steve Ritchie
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A63 - SPORTS GAMES AMUSEMENTS
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Ball trough for pinball games
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Patent number 5,358,243
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Issue date Oct 25, 1994
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Williams Electronics Games, Inc.
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Brian Eddy
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A63 - SPORTS GAMES AMUSEMENTS
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Oscillating ball cannon
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Patent number 5,186,462
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Issue date Feb 16, 1993
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Williams Electronics Games, Inc.
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Carl Biagi
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A63 - SPORTS GAMES AMUSEMENTS
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