The ornamental design for a combined licenseplate and extension cord holder, as shown and described.
FIG. 1 is a perspective view of a first embodiment of the combined license plate and extension cord holder;
FIG. 2 is another perspective view of the first embodiment in use;
FIG. 3 is a top view of the first embodiment.
FIG. 4 is a right side view of the first embodiment, the left side view being a mirror image thereof;
FIG. 5 is a front view of the first embodiment;
FIG. 6 is a rear view of the first embodiment;
FIG. 7 is a bottom plan view of the first embodiment;
FIG. 8 is a perspective view of a second embodiment of the combined license plate and extension cord holder;
FIG. 9 is another perspective view of the second embodiment in use;
FIG. 10 is a top view of the second embodiment;
FIG. 11 is a right side view of the second embodiment the left side view being a mirror image thereof;
FIG. 12 is a front view of the second embodiment;
FIG. 13 is a rear view of the second embodiment; and,
FIG. 14 is a bottom plan view of the second embodiment.
The broken lines in the drawings illustrates the environment and portions of the combined license plate and extension cord holder which forms no part of the claimed design.