Document Type and Number:
Japanese Patent JPS61156021
Kind Code:
U
Application Number:
JP3838185U
Publication Date:
September 27, 1986
Filing Date:
March 18, 1985
Export Citation:
International Classes:
G02B7/00; G11B7/12; G11B7/135; (IPC1-7): G11B7/12; G02B7/00; G11B7/135
Domestic Patent References:
| JPS603929B2 | 1985-01-31 |