Document Type and Number:
Japanese Patent JPS5359528
Kind Code:
U
Application Number:
JP14261576U
Publication Date:
May 20, 1978
Filing Date:
October 22, 1976
Export Citation:
International Classes:
E21D9/08; E21D9/06; (IPC1-7): E21D9/06
Domestic Patent References:
| JPS4811627A | ||||
| JP41021825A |