Chair backrest

Description

FIG. 1 is a perspective view of chair backrest showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left end view thereof;

FIG. 5 is a right end view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is another perspective view thereof; and,

FIG. 9 is a perspective view thereof, shown with environmental subject matter.

The broken lines shown in the drawings are for the purpose of illustrating environmental subject matter and form no part of the claimed design.

Claims

The ornamental design for a chair backrest, as shown and described.