Document Type and Number:
Japanese Patent JPS56153688
Kind Code:
U
Application Number:
JP5080480U
Publication Date:
November 17, 1981
Filing Date:
April 15, 1980
Export Citation:
International Classes:
F16L27/12; F16L21/02; F16L21/08; (IPC1-7): F16L27/12; F16L21/08
Domestic Patent References:
| JP54036125B |