Document Type and Number:
Japanese Patent JPS5313066
Kind Code:
Y2
Application Number:
JP2345575U
Publication Date:
April 08, 1978
Filing Date:
February 20, 1975
Export Citation:
International Classes:
F16L5/00; E04G9/10; E04G13/02; E04G15/06; E04G21/02; (IPC1-7): F16L5/00; E04G9/10; E04G21/02