Document Type and Number:
Japanese Patent JPS5556223
Kind Code:
Y2
Application Number:
JP17424176U
Publication Date:
December 26, 1980
Filing Date:
December 24, 1976
Export Citation:
International Classes:
F04B33/00; F04B45/00; F04B45/04; F04B45/06; (IPC1-7): F04B45/04