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JPS58107688

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DESCRIPTION JPS58107688
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a sectional view showing an example of a conventional diaphragm, and FIG. 2 is a
sectional view showing an example of a diaphragm according to the present invention. 2 is a core
member made of foam, 3 is a voice coil, 4 is a surface layer, and 6 is a recess.
11-05-2019
1
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