Document Type and Number:
Japanese Patent JPS4896941
Kind Code:
U
Application Number:
JP1975072U
Publication Date:
November 17, 1973
Filing Date:
February 16, 1972
Export Citation:
International Classes:
H04R9/04; H04R7/00; H04R7/16; (IPC1-7): H04R9/04; H04R7/00