Document Type and Number:
Japanese Patent JPS5173036
Kind Code:
U
Application Number:
JP14769674U
Publication Date:
June 09, 1976
Filing Date:
December 05, 1974
Export Citation:
International Classes:
G03B31/00; (IPC1-7): G03B31/00
Domestic Patent References:
| JPS5038355B1 | 1975-12-09 |