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Knock control system
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Patent number 4,562,813
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Issue date Jan 7, 1986
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Hitachi, Ltd.
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Terumi Okado
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Electronic device for automobile
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Patent number 4,546,412
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Issue date Oct 8, 1985
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Hitachi, Ltd.
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Terumi Nakazawa
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Pressure transducer
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Patent number 4,325,260
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Issue date Apr 20, 1982
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Hitachi, Ltd.
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Minoru Takahashi
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G01 - MEASURING TESTING
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Ignition device
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Patent number 4,224,917
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Issue date Sep 30, 1980
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Hitachi, Ltd.
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Terumi Nakazawa
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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