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The ornamental design for an automatic scrub brush, as shown and described. |
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FIG. 1 is a perspective view of an automatic scrub brush showing my new design;
FIG. 2 is an end elevational view thereof;
FIG. 3 is an elevational view of the opposite end thereof;
FIG. 4 is a front elevational view thereof, the rear being a mirror image; and,
FIG. 5 is a side elevational view thereof, the opposite side being a mirror image.
The bristles are partially shown in FIGS. 1, 2, 4 and 5 for ease of illustration only.
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