FIG. 1 is an isometric front view showing the new design for a cavity drum;
FIG. 2 is a front view of the cavity drum;
FIG. 3 is a back view of the cavity drum;
FIG. 4 is a right side view of the cavity drum;
FIG. 5 is a left side view of the cavity drum;
FIG. 6 shows the view of FIG. 2 with the cavity drum rotated 45 degrees; and,
FIG. 7 is a bottom and top view of the cavity drum.
The broken lines, were present, in all FIGS. illustrate portions of the cavity drum that form no part of the claimed design.
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