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The ornamental design for a portable dental chair or similar article, substantially as shown and described. |
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FIG. 1 is a side elevational view of a portable dental chair or similar article showing my new design.
FIG. 2 is a rear elevational view thereof.
FIG. 3 is a bottom plan view thereof.
FIG. 4 is a top plan view thereof.
FIG. 5 is an elevational view of the side opposite to that shown in FIG. 1.
FIG. 6 is a front elevational view thereof.
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