Document Type and Number:
Japanese Patent JPS49103447
Kind Code:
U
Application Number:
JP14830072U
Publication Date:
September 05, 1974
Filing Date:
December 27, 1972
Export Citation:
International Classes:
G03B31/00; (IPC1-7): G03B31/00
Domestic Patent References:
| JPH049928U | 1992-01-28 |