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Noise reducing system
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Patent number 5,652,799
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Issue date Jul 29, 1997
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Noise Cancellation Technologies, Inc.
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Colin Fraser Ross
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Audio reproduction system
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Patent number 5,481,615
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Issue date Jan 2, 1996
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Noise Cancellation Technologies, Inc.
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Graham P. Eatwell
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Active control of machine performance
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Patent number 5,431,008
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Issue date Jul 11, 1995
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Noise Cancellation Technologies, Inc.
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Colin F. Ross
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS