Document Type and Number:
Japanese Patent JPS5216762
Kind Code:
U
Application Number:
JP10232275U
Publication Date:
February 05, 1977
Filing Date:
July 25, 1975
Export Citation:
International Classes:
F16L37/22; E03C1/086; F16L33/22; F16L37/00; F16L37/23; (IPC1-7): F16L33/22