The ornamental design for a liquidapplicator, as shown and described.
FIG. 1 is a front perspective view of a liquid applicator, showing the new design;
FIG. 2 is a left side elevational view thereof, the right side elevational view being a mirror image of the left side elevational view;
FIG. 3 is a top perspective view thereof;
FIG. 4 is a bottom perspective view thereof;
FIG. 5 is top perspective view thereof; and,
FIG. 6 is a bottom perspective view thereof.
The solid line showing illustrates the claimed features within the design for the claimed article of manufacture, while the broken line showing illustrates the non-claimed features within the design for the claimed article of manufacture. The shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.