Document Type and Number:
Japanese Patent JPS57202296
Kind Code:
U
Application Number:
JP5942882U
Publication Date:
December 23, 1982
Filing Date:
April 23, 1982
Export Citation:
International Classes:
H04R9/12; H04R9/16; (IPC1-7): H04R9/16
Domestic Patent References:
| JPS465577A | ||||
| JP50051621B | ||||
| JPS5123895A | 1976-02-26 | |||
| JPS5123894A | 1976-02-26 |