Document Type and Number:
Japanese Patent JPS55170586
Kind Code:
U
Application Number:
JP7019279U
Publication Date:
December 08, 1980
Filing Date:
May 26, 1979
Export Citation:
International Classes:
F16L37/08; F16L21/06; F16L37/00; F16L41/00; (IPC1-7): F16L21/06