Document Type and Number:
Japanese Patent JPS5251626
Kind Code:
U
Application Number:
JP13989775U
Publication Date:
April 13, 1977
Filing Date:
October 13, 1975
Export Citation:
International Classes:
H04R9/02; H04R1/02; H04R1/22; H04R9/06; (IPC1-7): H04R1/02; H04R9/02; H04R9/06