Document Type and Number:
Japanese Patent JPS57501685
Kind Code:
A
Application Number:
JP50234980A
Publication Date:
September 16, 1982
Filing Date:
September 25, 1980
Export Citation:
International Classes:
F04B5/02; F04B13/02; F15B3/00; (IPC1-7): F04B13/02; F15B3/00