FIG. 1 is a front perspective view of a refrigerator, showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left-side view thereof;
FIG. 5 is a right-side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a partial perspective view thereof showing a refrigerator door portion;
FIG. 9 is a partial front view thereof showing the refrigerator door portion;
FIG. 10 is a partial rear view thereof showing the refrigerator door portion;
FIG. 11 is a partial left-side view thereof showing the refrigerator door portion;
FIG. 12 is a partial right-side view thereof showing the refrigerator door portion;
FIG. 13 is a partial top plan view thereof showing the refrigerator door portion;
FIG. 14 is a partial bottom plan view thereof showing the refrigerator door portion;
FIG. 15 is a cross-sectional view taken along line 15-15 of FIG. 9;
FIG. 16 is another partial perspective view thereof showing the refrigerator door portion, wherein an unclaimed portion is omitted for clarity;
FIG. 17 is an enlarged view of the encircled portion 17 in FIG. 1; and,
FIG. 18 is an enlarged view of the encircled portion 18 in FIG. 2.
The even-dash broken lines illustrating portions of the refrigerator form no part of the claimed design. The dot-dash broken lines encircling enlargement portions of the claimed design form no part of the claimed design.