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Title:
【考案の名称】圧電型スピ-カ
Document Type and Number:
Japanese Patent JPS60136598
Kind Code:
U
Inventors:
Tadashi Sawafuji
Application Number:
JP2378984U
Publication Date:
September 10, 1985
Filing Date:
February 21, 1984
Export Citation:
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International Classes:
H04R7/14; H04R1/22; H04R17/00; (IPC1-7): H04R17/00; H04R1/22; H04R7/14
Domestic Patent References:
JP58139799B



 
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