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Axle load scale
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Patent number 5,773,766
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Issue date Jun 30, 1998
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Matsushita Electric Industrial Co., Ltd.
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Hidetoshi Kinoshita
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G01 - MEASURING TESTING
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IC card device for managing system
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Patent number 5,640,003
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Issue date Jun 17, 1997
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Matsushita Electric Industrial Co., Ltd.
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Tadayori Makino
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G06 - COMPUTING CALCULATING COUNTING
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Knock sensor
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Patent number 4,307,602
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Issue date Dec 29, 1981
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Matsushita Electric Industrial Co., Ltd.
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Daisaku Sawada
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G01 - MEASURING TESTING