Electric buzzer
FIG. 1 is a front view of the electric buzzer showing the new design; 
     FIG. 2 is a side elevation as seen from any one of the four sides of the electric buzzer. 
     FIG. 3 is a perspective view of the electric buzzer. 
     A panel surface is fragmentarily shown in broken lines in FIG. 2 for illustration purposes only. 
     The rear view of the electric buzzer is flat and unornamental.