Document Type and Number:
Japanese Patent JPS5722796
Kind Code:
U
Application Number:
JP10039880U
Publication Date:
February 05, 1982
Filing Date:
July 16, 1980
Export Citation:
International Classes:
G10K9/12; G10K9/13; H04R11/02; H04R13/00; (IPC1-7): G10K9/12; H04R11/02
Domestic Patent References:
| JPS6210703U | 1987-01-22 |