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Takao Arai
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Sayama, JP
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last 30 patents
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Patent Grant
Modifier for paving asphalt
Patent number
4,560,414
Issue date
Dec 24, 1985
Nippon Hodo Co., Ltd.
Shinko Kikegawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...