Document Type and Number:
Japanese Patent JPH02105681
Kind Code:
U
Application Number:
JP1388589U
Publication Date:
August 22, 1990
Filing Date:
February 08, 1989
Export Citation:
International Classes:
F16L55/00; F16L7/00; (IPC1-7): F16L7/00; F16L55/00
Domestic Patent References:
JPS5147057B1 | 1976-12-13 | |||
JPH0236687A | 1990-02-06 | |||
JPS4812613B1 | 1973-04-21 |