Document Type and Number:
Japanese Patent JPS522088
Kind Code:
Y2
Application Number:
JP5248873U
Publication Date:
January 18, 1977
Filing Date:
April 28, 1973
Export Citation:
International Classes:
F04B9/02; F04B9/04; F04B9/14; F04B19/22; (IPC1-7): F04B9/14; F04B9/04
Next Patent: JPS522089