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The ornamental design for a paradoxical structural puzzle, as shown and described.
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FIG. 1 is a left side view of the paradoxical structural puzzle;
FIG. 2 is a right side view of the paradoxical structural puzzle;
FIG. 3 is a front view of the paradoxical structural puzzle;
FIG. 4 is a top view of the paradoxical structural puzzle;
FIG. 5 is a bottom view of the paradoxical structural puzzle;
FIG. 6 is a back view of the paradoxical structural puzzle;
FIG. 7 is a front perspective view of the paradoxical structural puzzle;
FIG. 8 is a front perspective view of the paradoxical structural puzzle with certain puzzle elements removed; and,
FIG. 9 is an exploded view of the paradoxical structural puzzle.
Lennon, Matthew F., Lennon, Patricia A.
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| D307452, | Nov 02 1987 | HICKS, DELBERT W | Toy puzzle |
| D375329, | Dec 05 1995 | Geometric structural puzzle | |
| D397378, | Jul 07 1997 | Mirror image geometric puzzle |
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