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The ornamental design for a chair back, as shown and described.
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FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right-side elevational view thereof (the left-side elevational view being a mirror image);
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken lines shown are for illustrative purposes only and form no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 08 2003 | GASSER, MARK E | GASSER CHAIR COMPANY, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014295 | /0428 | |
| Jul 14 2003 | Gasser Chair Company, Inc. | (assignment on the face of the patent) | / |
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