Document Type and Number:
Japanese Patent JPS5221601
Kind Code:
Y2
Application Number:
JP6994573U
Publication Date:
May 18, 1977
Filing Date:
June 12, 1973
Export Citation:
International Classes:
F04B53/10; F04B7/00; F04B9/04; F04B13/00; F04B43/02; (IPC1-7): F04B43/02; F04B21/02