Document Type and Number:
Japanese Patent JPS5027523
Kind Code:
A
Application Number:
JP7725773A
Publication Date:
March 20, 1975
Filing Date:
July 09, 1973
Export Citation:
International Classes:
G11B5/31; G11B5/17
Domestic Patent References:
| JPS471834A |
Foreign References:
| US3344237A | 1967-09-26 |