Document Type and Number:
Japanese Patent JPS56153687
Kind Code:
U
Application Number:
JP5106780U
Publication Date:
November 17, 1981
Filing Date:
April 15, 1980
Export Citation:
International Classes:
F16L27/10; F16L23/02; F16L33/00; F16L33/28; (IPC1-7): F16L23/02; F16L27/10