We claim the ornamental design for a blister card, as shown and described.
FIG. 1 is a right, front, top perspective view of a blister card package showing my new design;
FIG. 2 is a front elevational view thereof, the back elevational view being plain an unornamented;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top end view thereof;
FIG. 6 is a bottom end view thereof; and,
FIG. 7 is a back elevational view thereof.
The broken line portion of the figure drawings showing a blister well portion and a peripheral edge protrusion section is included to show unclaimed subject matter only and forms no part of the claimed design; and, the dot-dash style broken lines describe the claim boundary and form no part thereof.