FIG. 1 is a perspective view of a first embodiment of my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side view thereof, the right side view being a mirror image of the left side view;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a side cross-sectional view, taken in the direction of line 7-7 shown in FIG. 5;
FIG. 8 is a perspective view of a second embodiment of my new design;
FIG. 9 is a front elevation view thereof;
FIG. 10 is a left side view thereof, the right side view being a mirror image of the left side view;
FIG. 11 is a rear elevation view thereof;
FIG. 12 is a bottom plan view thereof;
FIG. 13 is a top plan view thereof; and,
FIG. 14 is a side cross-sectional view, taken across the line 14-14 shown in FIG. 12.
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