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Pavement for automobile test course
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Patent number 6,102,614
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Issue date Aug 15, 2000
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The Nippon Road Company Limited
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Wataru Yukawa
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Control device for asphalt finisher
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Patent number 5,484,227
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Issue date Jan 16, 1996
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Niigata Engineering Co., Ltd.
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Hachiro Ikeda
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES