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Toll collection system
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Patent number 5,705,996
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Issue date Jan 6, 1998
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Nippondenso Co., Ltd.
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Osamu Eguchi
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G07 - CHECKING-DEVICES
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Vehicle speedometer
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Patent number 4,689,624
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Issue date Aug 25, 1987
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Nippon Soken, Inc.
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Yoshiyuki Kago
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G01 - MEASURING TESTING
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Ultrasonic transducer
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Patent number 4,581,685
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Issue date Apr 8, 1986
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Nippon Soken, Inc.
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Yoshiyuki Kago
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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