Document Type and Number:
Japanese Patent JPS5378708
Kind Code:
U
Application Number:
JP16172076U
Publication Date:
June 30, 1978
Filing Date:
December 01, 1976
Export Citation:
International Classes:
E01C5/00; E01B27/00; (IPC1-7): E01B27/00
Domestic Patent References:
| JP51136628B | ||||
| JPS4119885Y1 | ||||
| JPS4117304Y1 | 1966-08-11 |