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Chiyoda Chem. Engineering & Construction Co. Ltd.
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Condensation product and use thereof as dispersant for pitch in wat...
Patent number
4,565,546
Issue date
Jan 21, 1986
Nikka Chemical Industry Co.
Osamu Ohzeki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL