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The ornamental design for a rebar chair, as shown and described.
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FIG. 1 is a perspective view of a rebar chair in accordance with my design;
FIG. 2 is a front view thereof;
FIG. 3 is a left side view, the right side view being a mirror image thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
McPherson, John W., McDaniel, Joe B.
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