Spheral polyhedral interlocking puzzle
US D232571 S
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Description (OCR text may contain errors)
Des. 232,571 Patented Aug. 27, 1974 United States Patent Ofiiice SPHERAL POLYHEDRAL INTERLOCKING PUZZLE Collin, Old Sudbury Road, Lincoln, Mass. 01773 Filed Apr. 14, 1972, Ser. No. 244,344
Term of patent 14 years Int. Cl. D21-01 D34-15 M U.S. Cl
l I I FOREIGN PATENTS 245,402 1947 Switzerland 273160 The figure is a perspective view of a spheral polyhedral interlocking puzzle, showing my new design.
The design has regular dodecahedral symmetry, so that the views of all faces are identical.
OTHER REFERENCES Philosophical Transactions of The Royal Society, 1954, A246, Q41.L8, p. 56, Fig. 48.
I claim: The ornamental design for a spheral polyhedral interlocking puzzle, as shown and described.
MELVIN B. FEIFER, Primary Examiner References Cited UNITED STATES PATENTS 3,372,936 3/1968 Sanson 273160