Chair base

Description

1. Chair base

1.1 : Perspective

1.2 : Perspective

1.3 : Front

1.4 : Back

1.5 : Left

1.6 : Right

1.7 : Top

1.8 : Bottom

1.9 : Perspective view shown in a position of use

The parts shown by means of broken lines in the reproductions are not part of the claimed design; the broken lines in fig. 9 depict environmental structure of the chair base that form no part of the claimed design.

Claims

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