Document Type and Number:
Japanese Patent JPS5222800
Kind Code:
Y2
Application Number:
JP11292872U
Publication Date:
May 25, 1977
Filing Date:
September 27, 1972
Export Citation:
International Classes:
F16L37/00; B63B9/00; B63B13/00; B63B29/16; B63J4/00; F16L37/08; F16L37/58; (IPC1-7): B63B9/00; B63B29/16; F16L37/08