Document Type and Number:
Japanese Patent JPS57168400
Kind Code:
U
More Like This:
Application Number:
JP5499081U
Publication Date:
October 23, 1982
Filing Date:
April 16, 1981
Export Citation:
International Classes:
H04R9/12; (IPC1-7): H04R9/12
Domestic Patent References:
| JPS5492702A | 1979-07-23 |