FIG. 1 is a first top perspective view of an adapter plug of the new design.
FIG. 2 is a second top perspective view of the adapter plug of FIG. 1.
FIG. 3 is a third top perspective view of the adapter plug of FIG. 1.
FIG. 4 is a fourth top perspective view of the adapter plug of FIG. 1.
FIG. 5 is a first bottom perspective view of the adapter plug of FIG. 1.
FIG. 6 is a second bottom perspective view of the adapter plug of FIG. 1.
FIG. 7 is a third bottom perspective view of the adapter plug of FIG. 1.
FIG. 8 is a fourth bottom perspective view of the adapter plug of FIG. 1.
FIG. 9 is a front elevation view of the adapter plug of FIG. 1.
FIG. 10 is a rear elevation view of the adapter plug of FIG. 1.
FIG. 11 is a right side view of the adapter plug of FIG. 1.
FIG. 12 is a left side elevation view of the adapter plug of FIG. 1.
FIG. 13 is a top plan view of the adapter plug of FIG. 1; and,
FIG. 14 is a bottom plan view of the adapter plug of FIG. 1.
Broken lines in FIGS. 1-14 illustrate portions of the adapter plug that form no part of the claimed design.