Title:
【考案の名称】スピ-カ
Document Type and Number:
Japanese Patent JPS5873698
Kind Code:
U
Inventors:
Shigeru Watanabe
Application Number:
JP16762481U
Publication Date:
May 18, 1983
Filing Date:
November 12, 1981
Export Citation:
International Classes:
H04R9/02; H04R1/06; H04R9/04; H04R9/06; (IPC1-7): H04R9/04; H04R1/06; H04R9/02; H04R9/06
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