Document Type and Number:
Japanese Patent JPS5257628
Kind Code:
U
Application Number:
JP14492375U
Publication Date:
April 26, 1977
Filing Date:
October 24, 1975
Export Citation:
International Classes:
G11B23/50; (IPC1-7): G11B23/50
Domestic Patent References:
| JPS4948122B1 | 1974-12-19 | |||
| JP48071823B | ||||
| JPS4710505B1 |