Document Type and Number:
Japanese Patent JPH025197
Kind Code:
Y2
Application Number:
JP17470183U
Publication Date:
February 07, 1990
Filing Date:
November 14, 1983
Export Citation:
International Classes:
F16L59/12; F16L7/00; F16L59/14; F16L59/147; F16L59/16; (IPC1-7): F16L59/16