Patent Publication Number: US-D506629-S

Title: Chair back

Description:
FIG. 1 is a front perspective view of a chair back showing the new design; 
     FIG. 2 is a slightly reduced front view of the chair back of FIG. 1; 
     FIG. 3 is a slightly reduced rear view of the chair back of FIG. 1; 
     FIG. 4 is a slightly reduced left side view of the chair back of FIG. 1; 
     FIG. 5 is a slightly reduced right side view of the chair back of FIG. 1; 
     FIG. 6 is a slightly reduced top plan view of the chair back of FIG. 1; and, 
     FIG. 7 is a slightly reduced bottom plan view of the chair back of FIG. 1. 
     The broken lines shown are for environmental illustrative purposes only; and form no part of the claimed design, the claimed design is for a product confirugation only.