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The ornamental design for a guard rail support, as shown and described. |
FIG. 1 is a perspective view of a guard rail support showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a side elevational view;
FIG. 4 is a top plan view;
FIG. 5 is a bottom plan view;
FIG. 6 is a perspective view of a guard rail support with a scaffold attachment shown in broken lines;
FIG. 7 is a perspective view of a guard rail support with a parapet attachment shown in broken lines; and,
FIG. 8 is a perspective view of a guard rail support with a roof attachment plate shown in broken lines.
Any broken line illustration in the drawing disclosure is not part of the design sought to be patented and is intended to show environmental considerations.
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