Title:
【考案の名称】防磁スピ-カ
Document Type and Number:
Japanese Patent JPS59169197
Kind Code:
U
Inventors:
Takahashi Masayoshi
Application Number:
JP6414383U
Publication Date:
November 12, 1984
Filing Date:
April 28, 1983
Export Citation:
International Classes:
H04R9/00; H04R9/02; H04R9/06; (IPC1-7): H04R9/02; H04R9/06