Document Type and Number:
Japanese Patent JPS53164133
Kind Code:
U
Application Number:
JP6931077U
Publication Date:
December 22, 1978
Filing Date:
May 31, 1977
Export Citation:
International Classes:
G11B33/12; B60R11/02; H04R1/02; (IPC1-7): H04R1/02; B60R11/02; G11B1/00
Domestic Patent References:
| JPS4935318U | 1974-03-28 |