Document Type and Number:
Japanese Patent JPS5251658
Kind Code:
Y2
Application Number:
JP8097471U
Publication Date:
November 24, 1977
Filing Date:
September 08, 1971
Export Citation:
International Classes:
F16L55/10; A61D19/00; B65D59/00; B65D59/02; B65D67/00; B65D85/20; E04G21/24; E04G21/30; E04G25/00; F16L57/00; (IPC1-7): B65D85/20