Document Type and Number:
Japanese Patent JPH0155833
Kind Code:
B2
Inventors:
FUKUDA HIDEO
ISHIBASHI TAMOTSU
KAWASHIMA WATARU
ISHIBASHI TAMOTSU
KAWASHIMA WATARU
Application Number:
JP7822484A
Publication Date:
November 27, 1989
Filing Date:
April 18, 1984
Export Citation:
Assignee:
MITSUI CONSTR
International Classes:
F16L1/00; E01B25/00; F16L7/00
Next Patent: JPH0155834