Document Type and Number:
Japanese Patent JPS5172043
Kind Code:
U
Application Number:
JP14749274U
Publication Date:
June 07, 1976
Filing Date:
December 03, 1974
Export Citation:
International Classes:
G03B19/18; G03B9/08; G03B17/38; G03B17/46; (IPC1-7): G03B17/38; G03B17/46
Domestic Patent References:
| JPS4032224Y1 |