Document Type and Number:
Japanese Patent JPH052702
Kind Code:
Y2
Application Number:
JP20020387U
Publication Date:
January 22, 1993
Filing Date:
December 30, 1987
Export Citation:
International Classes:
E03B9/02; A62C35/20; F16L37/00; F16L39/04; (IPC1-7): E03B9/02