Document Type and Number:
Japanese Patent JPS4919975
Kind Code:
Y1
Application Number:
JP711068U
Publication Date:
May 28, 1974
Filing Date:
February 02, 1968
Export Citation:
International Classes:
F16L27/08; E03C1/182; F16L27/00; F16L37/00; F16L39/04; (IPC1-7): F16L27/00; F16L27/08