Document Type and Number:
Japanese Patent JPS4974023
Kind Code:
U
Application Number:
JP11634572U
Publication Date:
June 27, 1974
Filing Date:
October 09, 1972
Export Citation:
International Classes:
E04D3/30; (IPC1-7): E04D3/30
Domestic Patent References:
| JPS4427061Y1 | 1969-11-12 |