Document Type and Number:
Japanese Patent JPS53158933
Kind Code:
U
Application Number:
JP6471077U
Publication Date:
December 13, 1978
Filing Date:
May 20, 1977
Export Citation:
International Classes:
F16L25/02; E04G9/10; E04G15/06; F16L5/00; F16L7/00; (IPC1-7): F16L7/00; E04G9/10; F16L25/02
Domestic Patent References:
| JPS433154Y1 | 1968-02-09 | |||
| JP50061257B |