Document Type and Number:
Japanese Patent JPS49126405
Kind Code:
U
Application Number:
JP2484073U
Publication Date:
October 30, 1974
Filing Date:
February 27, 1973
Export Citation:
International Classes:
G03B31/04; G03B31/00; G11B27/36; G11B31/00; G11B33/10; (IPC1-7): G03B31/00; G11B27/36; G11B31/00
Foreign References:
| US3582196A | 1971-06-01 |