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Engine noise control apparatus
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Patent number 5,692,052
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Issue date Nov 25, 1997
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Nippondenso Co., Ltd.
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Katsuyuki Tanaka
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Intake sound control apparatus
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Patent number 5,446,790
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Issue date Aug 29, 1995
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Nippondenso Co., Ltd.
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Katsuyuki Tanaka
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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After glow control system for engine
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Patent number 4,478,181
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Issue date Oct 23, 1984
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Nippon Soken, Inc.
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Tetsuro Kikuchi
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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