Document Type and Number:
Japanese Patent JPS5723693
Kind Code:
U
Application Number:
JP9791280U
Publication Date:
February 06, 1982
Filing Date:
July 10, 1980
Export Citation:
International Classes:
H04R7/04; H04R7/20; (IPC1-7): H04R7/20; H04R7/04
Domestic Patent References:
| JP53145836B |