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Brief description of the drawings
FIG. 1 is a cross-sectional view of a conventional flat drive speaker, FIG. 2 is a partially cutaway
cross sectional view showing one embodiment of a flat drive loudspeaker according to the
present invention, and FIG. 3 is a flat according to the present invention It is a perspective view
showing one example of a diaphragm of a drive type speaker. DESCRIPTION OF SYMBOLS 1 ...
Diaphragm, 4a ... Vibration element, 4d ... Corrugation, 4e ... Peripheral part, 5 ... Voice coil, 8 ...
Frame, 8a ... Diaphragm sticking part.