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The ornamental design for a portable boat ramp, as shown and described. |
FIG. 1 is a top plan view of the portable boat ramp;
FIG. 2 is a side elevation thereof, and the other unillustrated side being identical thereto;
FIG. 3 is a rear end elevational view thereof looking from left-to-right in FIG. 2;
FIG. 4 is a front end elevational view thereof looking from right-to-left in FIG. 2; and
FIG. 5 is a bottom plan view thereof.
Dorsey, Charles L., Dorsey, Donald L., Richardson, III, Sam M.
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