Document Type and Number:
Japanese Patent JPS5070920
Kind Code:
U
More Like This:
Application Number:
JP12263473U
Publication Date:
June 23, 1975
Filing Date:
October 22, 1973
Export Citation:
International Classes:
G03B27/72; G03G15/00; G03G15/04; G03G15/043; (IPC1-7): G03B27/76; G03G15/00
Domestic Patent References:
| JPS3916386Y1 |