Document Type and Number:
Japanese Patent JPH0331907
Kind Code:
Y2
Application Number:
JP2731987U
Publication Date:
July 05, 1991
Filing Date:
February 27, 1987
Export Citation:
International Classes:
F16L1/00; F16L7/00; (IPC1-7): F16L1/00
Next Patent: JPH0331908