Document Type and Number:
Japanese Patent JPS5392218
Kind Code:
U
Application Number:
JP16107577U
Publication Date:
July 27, 1978
Filing Date:
November 29, 1977
Export Citation:
International Classes:
F16L21/04; (IPC1-7): F16L21/04
Domestic Patent References:
| JP50149913B | ||||
| JP49065515B |