US D401453 S
FIG. 1 is a front elevation view of a chair back showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof, the left side elevation view being a mirror image thereof; and,
FIG. 6 is a right side elevation view thereof.
The phantom lines in FIG. 6 are for illustrative purposes and form no part of the design as claimed.