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The ornamental design for a chair back, as shown and described. |
FIG. 1 is a perspective view of a chairback showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a side elevational view thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
The side of the chair back not shown is a mirror image of the side shown in FIG. 4.
The broken lines in the FIG. 1 description are for illustrative purposes only.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Dec 09 1985 | THOMPSON, CHARLES E | HOSPITAL SUPPLY COMPANY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004500 | /0978 | |
Dec 20 1985 | Hospital Supply Company, Inc. | (assignment on the face of the patent) | / |
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