Document Type and Number:
Japanese Patent JPS57136092
Kind Code:
U
Application Number:
JP2243981U
Publication Date:
August 25, 1982
Filing Date:
February 19, 1981
Export Citation:
International Classes:
F15D1/02; F15D1/00; F16L41/02; (IPC1-7): F16L41/02; F15D1/00
Domestic Patent References:
| JPS4725141U | 1972-11-21 |