The ornamental design for a tongueretractor, as shown and described.
FIG. 1 is a first side perspective view of a tongue retractor showing my new design with a cover removed;
FIG. 2 is a second side perspective view of the tongue retractor shown in FIG. 1 with the cover removed;
FIG. 3 is a second side perspective view of the tongue retractor shown in FIG. 1 with the cover attached;
FIG. 4 is a third side view of the tongue retractor shown in FIG. 1 with the cover attached;
FIG. 5 is a fourth side view of the tongue retractor shown in FIG. 1 with the cover attached;
FIG. 6 is a fifth side view of the tongue retractor shown in FIG. 1 with the cover attached;
FIG. 7 is a first side view of the tongue retractor shown in FIG. 1 with the cover attached; and,
FIG. 8 is a second side view of the tongue retractor shown in FIG. 1 with the cover attached.
The broken lines shown in the views are included for the purpose of illustrating portions of the tongue retractor that form no part of the claimed design.