Document Type and Number:
Japanese Patent JPS5220201
Kind Code:
U
Application Number:
JP10592775U
Publication Date:
February 14, 1977
Filing Date:
July 31, 1975
Export Citation:
International Classes:
H04R11/08; (IPC1-7): H04R11/08
Domestic Patent References:
JPS4830165U | 1973-04-13 |