Chair back

Description

FIG. 1 is a rear view of the chair back shown in use;

FIG. 2 is a perspective view;

FIG. 3 is a front view;

FIG. 4 is a back view;

FIG. 5 is a left side view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

The broken lines shown are included for illustrative purposes only form no part of the claimed design.

Claims

The ornamental design for chair back, as shown and described.