Chair back

Description

FIG. 1 is a front, top, and right perspective view of a chair back, showing my new design;

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

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating portions of the chair back which form no part of the claimed design.

Claims

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