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JPS5893089

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DESCRIPTION JPS5893089
[0001]
Brief description of the drawings
[0002]
1 is a cross-sectional view of a conventional speaker device, FIG. 2 is a cross-sectional view of a
speaker device according to the present invention, FIG. It is a sound pressure frequency
characteristic (solid line) and distortion characteristic (dotted line) of this invention. 7 is a
speaker and 5 is a weight.
01-05-2019
1
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