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JPS5811799

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DESCRIPTION JPS5811799
[0001]
Brief description of the drawings
[0002]
FIG. 1 shows a piezoelectric buzzer according to a conventional example, A is a perspective view,
B is a vertical sectional front view, and FIG. 2 is a perspective view of the main part according to
the present invention. 3 and 4 are sound pressure-frequency characteristics when the thickness
of the mounting foot is 211 IIIt and 0.5 mm, respectively. In the drawings, the same numbers
indicate the same parts. 1 ...... tubular case, 12a ...... foot, 12a □ ...... 禰状 unit, 12a2 ...... strip
portion, 12a3 ...... Thin-walled part, 2... Piezoelectric diaphragm, 3.
04-05-2019
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