Document Type and Number:
Japanese Patent JPS5068103
Kind Code:
A
Application Number:
JP11718373A
Publication Date:
June 07, 1975
Filing Date:
October 18, 1973
Export Citation:
International Classes:
G03B31/04; G03B31/00; G11B31/00; (IPC1-7): G03B31/00; G11B31/00
Domestic Patent References:
| JPS4742323A |