Yoshifumi Maruyama

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Nagasaki, JP

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Patents Applicationslast 30 patents

Information Patent Application
DRY VACUUM PUMP
- Publication number 20110256003
- Publication date Oct 20, 2011
- Ulvac, Inc.
- Eiichiro Ohtsubo
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES