Document Type and Number:
Japanese Patent JPS53135905
Kind Code:
U
Application Number:
JP4154177U
Publication Date:
October 27, 1978
Filing Date:
March 31, 1977
Export Citation:
International Classes:
E02F3/36; E02F3/42; F16L5/00; (IPC1-7): E02F3/42; F16L5/00
Domestic Patent References:
| JPS5066002A | 1975-06-04 | |||
| JPS51138004A | 1976-11-29 |