Document Type and Number:
Japanese Patent JPS5021846
Kind Code:
B1
Application Number:
JP7265168A
Publication Date:
July 25, 1975
Filing Date:
October 04, 1968
Export Citation:
International Classes:
H04R7/02; H04R7/00; (IPC1-7): H04R7/00
Domestic Patent References:
| JP42023000A |