US D321252 S
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FIG. 1 is a perspective view of a locking cannula, showing our new design;
FIG. 2 is a side elevational view thereof, the opposite side elevational view being identical;
FIG. 3 is a top plan view thereof, the bottom plan view being identical;
FIG. 4 is an end elevational view thereof, taken from the left of FIG. 2; and
FIG. 5 is an end elevational view thereof, taken from the right of FIG. 2.