Document Type and Number:
Japanese Patent JPS5270405
Kind Code:
U
Application Number:
JP15787075U
Publication Date:
May 25, 1977
Filing Date:
November 20, 1975
Export Citation:
International Classes:
G11B33/06; G11B5/00; G11B19/02; G11B31/00; (IPC1-7): G11B31/00; G11B5/00; G11B17/06
Domestic Patent References:
| JP49113605B |