Document Type and Number:
Japanese Patent JPS5228801
Kind Code:
Y2
Application Number:
JP9707071U
Publication Date:
July 01, 1977
Filing Date:
October 19, 1971
Export Citation:
International Classes:
F04B53/06; F04B9/04; F04B13/00; F04B49/00; (IPC1-7): F04B13/00; F04B49/00