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Video transmission system
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Patent number 4,742,543
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Issue date May 3, 1988
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Jeffrey E. Frederiksen
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Video transmission system
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Patent number 4,694,489
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Issue date Sep 15, 1987
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Jeffrey E. Frederiksen
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Video transmission system
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Patent number 4,682,360
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Issue date Jul 21, 1987
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Jeffrey E. Frederiksen
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Player operated game apparatus
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Patent number RE31441
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Issue date Nov 15, 1983
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Bally Manufacturing Corporation
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David J. Nutting
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273 - Amusement devices: games
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Home computer and game apparatus
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Patent number 4,301,503
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Issue date Nov 17, 1981
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Bally Manufacturing Corporation
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Jeffrey E. Frederiksen
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G06 - COMPUTING CALCULATING COUNTING
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TV Game apparatus
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Patent number 4,296,930
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Issue date Oct 27, 1981
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Bally Manufacturing Corporation
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Jeffrey E. Frederiksen
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A63 - SPORTS GAMES AMUSEMENTS
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Player operated game apparatus
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Patent number 4,093,232
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Issue date Jun 6, 1978
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Bally Manufacturing Corporation
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David J. Nutting
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A63 - SPORTS GAMES AMUSEMENTS