Document Type and Number:
Japanese Patent JPS52138706
Kind Code:
U
Application Number:
JP4775376U
Publication Date:
October 21, 1977
Filing Date:
April 16, 1976
Export Citation:
International Classes:
G11B33/02; G11B15/28; (IPC1-7): G11B15/28; G11B1/00
Domestic Patent References:
| JP49117010B |