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JPS60186797

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DESCRIPTION JPS60186797
[0001]
Brief description of the drawings
[0002]
FIGS. 1 (i) and 1 (b) are partially cutaway front views and side sectional views of the directional
microphone of the present invention, and FIG. 2 is a partially cutaway front view of another
embodiment of the present invention, FIG. b and c are side sectional views showing a
conventional example, and FIG. 4 is a frequency characteristic diagram. 1 is a diaphragm, 2 is a
movable coil, 3 is an edge, 4 is a magnet, 5 is a pump, 6 is a yoke, 9 is a vent, 10 is a small hole,
and 11 is a dispersion plate. −204−
13-05-2019
1
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