FIG. 1 is a rear, top and side perspective view of helicopter rotor, frame and fins, showing our new design;
FIG. 2 is a front, top and side perspective view thereof;
FIG. 3 is a side view thereof; and,
FIG. 4 is a top view thereof.
The portions of the helicopter shown in broken lines are for illustration purposes only and form no part of the claimed design.
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