Title:
【考案の名称】スピ-カシステム
Document Type and Number:
Japanese Patent JPS6037987
Kind Code:
U
Inventors:
Hideo Yamamoto
Application Number:
JP12870583U
Publication Date:
March 15, 1985
Filing Date:
August 20, 1983
Export Citation:
International Classes:
H04R9/02; H04R1/02; (IPC1-7): H04R1/02; H04R9/02
Domestic Patent References:
| JPS54106826U | 1979-07-27 | |||
| JPS5719687U | 1982-02-01 | |||
| JPS54140730U | 1979-09-29 |