Title:
【考案の名称】スピ-カ
Document Type and Number:
Japanese Patent JPS60177586
Kind Code:
U
Inventors:
Koichi Yamamoto
Application Number:
JP6431984U
Publication Date:
November 26, 1985
Filing Date:
April 28, 1984
Export Citation:
International Classes:
H04R7/18; H04R1/28; (IPC1-7): H04R1/28; H04R7/18