Document Type and Number:
Japanese Patent JPS5254017
Kind Code:
Y2
Application Number:
JP7712771U
Publication Date:
December 07, 1977
Filing Date:
August 25, 1971
Export Citation:
International Classes:
F16L27/10; F16L11/11; F16L13/10; F16L27/12; F16L57/00; F16L58/00; (IPC1-7): F16L27/10; F16L13/10