Document Type and Number:
Japanese Patent JPS5622068
Kind Code:
Y2
Application Number:
JP10905877U
Publication Date:
May 25, 1981
Filing Date:
August 15, 1977
Export Citation:
International Classes:
F16L15/02; F16L15/04; F16L23/00; F16L23/024; F16L23/026; F16L23/028; F16L23/16; (IPC1-7): F16L15/02; F16L15/04; F16L23/00