Document Type and Number:
Japanese Patent JPS5070018
Kind Code:
A
Application Number:
JP11425873A
Publication Date:
June 11, 1975
Filing Date:
October 11, 1973
Export Citation:
International Classes:
G03B21/56; G02B5/00; G03B21/60; G09F13/00; G09F13/16; (IPC1-7): G03B21/56; G09F13/00
Domestic Patent References:
| JP41021012A |