Document Type and Number:
Japanese Patent JPS5099138
Kind Code:
A
Application Number:
JP14466873A
Publication Date:
August 06, 1975
Filing Date:
December 28, 1973
Export Citation:
International Classes:
G03B31/00; (IPC1-7): G03B31/00
Domestic Patent References:
JPS4943638A | 1974-04-24 |