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Saitama, JP
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last 30 patents
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Patent Grant
Treating agent for oil
Patent number
6,653,355
Issue date
Nov 25, 2003
Hakugen Co., Ltd.
Tatsuo Kasahara
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Patent Grant
Lubricating oil for diesel engines
Patent number
4,513,155
Issue date
Apr 23, 1985
Nippon Mining Co., Ltd.
Kunimitsu Tamura
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS