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Yosinobu Ito
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Aichi, JP
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Patents Grants
last 30 patents
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Patent Grant
Single stage root type-vacuum pump and vacuum fluid transport syste...
Patent number
7,950,911
Issue date
May 31, 2011
Sekisui Chemical Co., Ltd.
Tetsushi Ohtsuka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
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Patent Application
Single Stage Root Type-Vacuum Pump and Vacuum Fluid Transport Syste...
Publication number
20090004039
Publication date
Jan 1, 2009
Tetsushi Ohtsuka
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES