Document Type and Number:
Japanese Patent JPS56160385
Kind Code:
U
Application Number:
JP6017280U
Publication Date:
November 30, 1981
Filing Date:
April 30, 1980
Export Citation:
International Classes:
F16L15/00; F16L19/02; F16L35/00; (IPC1-7): F16L35/00; F16L15/00; F16L19/02
Domestic Patent References:
JPS5033817B2 | 1975-11-04 | |||
JPS5545086B2 | 1980-11-15 | |||
JP50050619B |