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The ornamental design for portable orthopedic back rest, substantially as shown. |
FIG. 1 is a front elevational view of a portable orthopedic back rest, showing my new design.
FIG. 2 is a left side elevational view.
FIG. 3 is a right side elevational view.
FIG. 4 is an end elevational view looking from the top of FIG. 1.
FIG. 5 is an end elevational view looking from the bottom of FIG. 1.
FIG. 6 is a rear elevational view.
FIG. 7 is a sectional view taken along the line 7--7 in FIG. 1.
FIG. 8 is a sectional view taken along the line 8--8 in FIG. 1.
FIG. 9 is a perspective view looking from the top and front of FIG. 1; and
FIG. 10 is a perspective view looking from the rear and bottom of FIG. 1.
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