The ornamental design for a luggagebasereinforcement, as shown and described.
FIG. 1 shows a perspective view of a design of a luggage base reinforcement.
FIG. 2 shows a front view of the design.
FIG. 3 shows a rear view of the design.
FIG. 4 shows a right side view of the design.
FIG. 5 shows a left side view of the design.
FIG. 6 shows a top view of the design; and,
FIG. 7 shows a bottom view of the design.
The luggage base reinforcement is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines represents unclaimed and portions forms no part of the claimed design. Other broken lines shown in the drawings, such as the tabs on the ends, represent unclaimed portions of the luggage base reinforcement and form no part of the claimed design.