Hair Trimmer

FIG. 1 is a front, left, bottom perspective view of a hair trimmer, showing my new design;

FIG. 2 is a rear, right perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is an enlarged top plan view of the hair trimmer; and,

FIG. 8 is an enlarged bottom plan view thereof.

The dashed broken lines in the figures depict portions of the hair trimmer that form no part of the claimed design.