Document Type and Number:
Japanese Patent JPH02123701
Kind Code:
U
Application Number:
JP3298789U
Publication Date:
October 11, 1990
Filing Date:
March 23, 1989
Export Citation:
International Classes:
G11B23/40; G11B3/68; (IPC1-7): G11B3/68; G11B23/40
Domestic Patent References:
| JP62158692B | ||||
| JPS6476581A | 1989-03-22 |