Document Type and Number:
Japanese Patent JPS5524346
Kind Code:
U
Application Number:
JP10668578U
Publication Date:
February 16, 1980
Filing Date:
August 03, 1978
Export Citation:
International Classes:
E21D9/087; E21D9/08; (IPC1-7): E21D9/08
Domestic Patent References:
| JP44015985A | ||||
| JP11017395U |