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The ornamental design for a long-blade closed-shoe swim fin, as shown and described. |
FIG. 1 is a top perspective view of a long-blade closed-shoe swim fin showing my new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is a front elevational view thereof.
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