Document Type and Number:
Japanese Patent JPS6452376
Kind Code:
U
Application Number:
JP14914087U
Publication Date:
March 31, 1989
Filing Date:
September 28, 1987
Export Citation:
International Classes:
H04R1/06; (IPC1-7): H04R1/06
Domestic Patent References:
JPS577030B1 | 1982-02-08 | |||
JP59059078B |