Document Type and Number:
Japanese Patent JPS5014327
Kind Code:
Y1
Application Number:
JP5795368U
Publication Date:
May 06, 1975
Filing Date:
July 08, 1968
Export Citation:
International Classes:
F16L21/00; E21D9/06; F16L1/00; (IPC1-7): F16L1/00; F16L21/00