Document Type and Number:
Japanese Patent JPS57198743
Kind Code:
U
Application Number:
JP8636981U
Publication Date:
December 17, 1982
Filing Date:
June 12, 1981
Export Citation:
International Classes:
G11B15/093; G11B15/02; G11B15/22; (IPC1-7): G11B15/02; G11B15/22
Domestic Patent References:
| JPS5116729U | 1976-02-06 |