Document Type and Number:
Japanese Patent JPS51121054
Kind Code:
U
More Like This:
Application Number:
JP3755475U
Publication Date:
October 01, 1976
Filing Date:
March 20, 1975
Export Citation:
International Classes:
H04R7/20; H04R7/18; H04R9/06; (IPC1-7): H04R7/18; H04R9/06
Domestic Patent References:
JPS4874040U | 1973-09-14 |