The ornamental design for a combinedbuckle and elasticluggage strap, as shown and described
FIG. 1 is an isometric view of the combined buckle and elastic luggage strap of the invention;
FIG. 2 is a front plan view of the combined buckle and elastic luggage strap of FIG. 1;
FIG. 3 is a backside plan view of the combined buckle and elastic luggage strap of FIG. 1;
FIG. 4 is a right side view of the combined and elastic luggage strap of FIG. 1;
FIG. 5 is a left side view of the combined buckle and elastic luggage strap of FIG. 1;
FIG. 6 is a top view of the combined buckle and elastic luggage strap of FIG. 1;
FIG. 7 is a bottom view of the combined buckle and elastic luggage strap of FIG. 1; and,
FIG. 8 is an environmental view of the combined buckle and elastic luggage strap of FIG. 1 attached to a wheeled luggage case with a valise supported thereon depicted in phantom.