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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5249451
Kind Code:
Y2
Application Number:
JP7171573U
Publication Date:
November 10, 1977
Filing Date:
June 15, 1973
Export Citation:
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International Classes:
F04B39/02; F04B39/06; F25B1/00; (IPC1-7): F04B39/02; F25B1/00