Document Type and Number:
Japanese Patent JPH02145393
Kind Code:
U
Application Number:
JP5474389U
Publication Date:
December 10, 1990
Filing Date:
May 12, 1989
Export Citation:
International Classes:
F16L29/00; F16L37/28; F16L37/44; (IPC1-7): F16L29/00; F16L37/28; F16L37/44