FIG. 1 is a perspective view of a piano performance case taken from the top and front, and showing the portable piano case as it appears with its top cover open, its music stand propped upon the inner surface of the top cover, and its piano drawer pulled outward;
FIG. 2 is a perspective view similar to FIG. 1, but showing the portable piano case as it appears with its top cover open, its music stand folded over the inner surface of the top cover, and its piano drawer pulled outward;
FIG. 3 is a perspective view similar to FIG. 1, but showing the portable piano case as it appears with its top cover open, its music stand left folded over the top cover, and its piano drawer pushed inward;
FIG. 4 is a perspective view similar to FIG. 1, but showing the portable piano case as it appears with its piano drawer and its top cover and music stand closed.
FIG. 5 is a top plan view of the portable piano case of FIG. 4;
FIG. 6 is a bottom plan view of the portable piano case of FIG. 4;
FIG. 7 is a front elevation view of the portable piano case of FIG. 4;
FIG. 8 is a back elevation view of the portable piano case of FIG. 4;
FIG. 9 is a right side elevation view of the portable piano case of FIG. 4; and,
FIG. 10 is a left side elevation view of the portable piano case of FIG. 4.
In the drawings, the broken lines showing portions of the portable piano case depict environment and form no part of the claim.