Document Type and Number:
Japanese Patent JPS52138422
Kind Code:
U
Application Number:
JP4540276U
Publication Date:
October 20, 1977
Filing Date:
April 14, 1976
Export Citation:
International Classes:
F16K17/34; F16K7/00; F17C13/12; (IPC1-7): F17C13/12; F16K7/00
Domestic Patent References:
| JP50116111B | ||||
| JP47051296A |