Document Type and Number:
Japanese Patent JPS5256702
Kind Code:
U
Application Number:
JP14408275U
Publication Date:
April 23, 1977
Filing Date:
October 21, 1975
Export Citation:
International Classes:
G11B3/42; G11B3/10; H04R1/00; (IPC1-7): H04R1/00; G11B3/10
Domestic Patent References:
| JPS50133902U | 1975-11-05 | |||
| JPS5119701U | 1976-02-13 |