Document Type and Number:
Japanese Patent JPS5144931
Kind Code:
U
Application Number:
JP11770874U
Publication Date:
April 02, 1976
Filing Date:
October 01, 1974
Export Citation:
International Classes:
G03B31/00; G11B15/46; (IPC1-7): G03B31/00; G11B15/46
Domestic Patent References:
| JP38011091A |