FIG. 1 is a perspective view of a hair straightener, showing my design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a side elevation thereof, the opposite side being a mirror image thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a perspective view of another embodiment of the hair straightener, showing my design;
FIG. 8 is a top view thereof;
FIG. 9 is a bottom view thereof;
FIG. 10 is a side elevation thereof, the opposite side being a mirror image thereof;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a rear elevation view thereof;
FIG. 13 is a perspective view of another embodiment of the hair straightener, showing my design;
FIG. 14 is a top view thereof;
FIG. 15 is a bottom view thereof;
FIG. 16 is a side elevation thereof, the opposite side being a mirror image thereof; and,
FIG. 17 is a front elevation view thereof.
The rear elevation view of the third embodiment is identical to the rear elevation views disclosed in FIGS. 6 and 12.
The broken line showings of the interior structure of the hair straightener and tip ornamentation are included for the purpose of illustrating portions of the article and form no part of the claimed design.