Document Type and Number:
Japanese Patent JPS5056123
Kind Code:
U
Application Number:
JP11062273U
Publication Date:
May 27, 1975
Filing Date:
September 21, 1973
Export Citation:
International Classes:
G03B21/00; G03B31/00; G11B5/41; (IPC1-7): G11B5/41; G03B31/00
Domestic Patent References:
| JPS4814221B1 | 1973-05-04 | |||
| JPS5136150U | 1976-03-17 |
Foreign References:
| US3636276A | 1972-01-18 |