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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS54109109
Kind Code:
U
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JP7170645Multi-stage vacuum booster pump rotor
JP2825673INDUSTRIAL APPLICABILITY: A method of operating a dry compression type multi-stage vacuum pump and a vacuum pump for carrying out the operation method.
Application Number:
JP454078U
Publication Date:
August 01, 1979
Filing Date:
January 20, 1978
Export Citation:
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International Classes:
F04C25/02; F04C19/00; (IPC1-7): F04C25/02; F04C19/00



 
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