Chair with ergonomically designed back

The ornamental design for a chair with ergonomically designed back, as shown and described.

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

FIG. 2 is a left side view thereof the right side view corresponding thereto;

FIG. 3 is a bottom thereof; and,

FIG. 4 is a top view thereof.

Patent	Priority	Assignee	Title
11551,
D244240,	Aug 13 1975		Chair
D278955,	Jun 01 1982	Vermont Castings, Inc.	Park bench
29994,
D355535,	Nov 18 1992	CAL-STYLE FURNITURE MFG CO	Chair
D355987,	Jan 18 1994	Tien-Shun Wood Products Co., Ltd.	Chair
D369919,	Jun 29 1995	AMERICAN SIGNATURE, INC	Chair
D373482,	Nov 02 1995		Chair

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