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Musical combat game
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Patent number 9,704,350
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Issue date Jul 11, 2017
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Harmonix Music Systems, Inc.
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Alexander Rigopulos
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A63 - SPORTS GAMES AMUSEMENTS
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Real-time music creation
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Patent number 6,011,212
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Issue date Jan 4, 2000
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Harmonix Music Systems, Inc.
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Alexander P. Rigopulos
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Real-time music creation
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Patent number 5,763,804
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Issue date Jun 9, 1998
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Harmonix Music Systems, Inc.
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Alexander P. Rigopulos
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Real-time music creation system
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Patent number 5,627,335
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Issue date May 6, 1997
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Harmonix Music Systems, Inc.
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Alexander P. Rigopulos
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G10 - MUSICAL INSTRUMENTS ACOUSTICS