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The ornamental design for a watercraft stabilizing flotation structure, as shown and described. |
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FIG. 1 is a perspective view of watercraft stabilizing flotation structure showing my new design;
FIG. 2 is a side elevational view thereof, the opposite side elevational view being a mirror image of that shown;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view; and
FIG. 6 is a rear elevational view thereof.
Calamia, Thomas J., Kitner, William M., Keahey, James R.
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