Document Type and Number:
Japanese Patent JPS5561688
Kind Code:
U
Application Number:
JP14432078U
Publication Date:
April 26, 1980
Filing Date:
October 20, 1978
Export Citation:
International Classes:
F16L53/00; H05B3/20; H05B3/56; (IPC1-7): F16L53/00; H05B3/56
Domestic Patent References:
JP51072897B | ||||
JPS4929504U | 1974-03-14 | |||
JPS5172897A | 1976-06-24 |