Polyhedral model

Office supplies; artists and teachers materials – Teaching material

Design Patent

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Design Patent

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D0480425

CLAIM:
The ornamental design for a polyhedral model, as shown and described.

REFERENCES:
patent: D55587 (1920-07-01), Bratton
patent: 1478058 (1923-12-01), Pope
patent: 2202592 (1940-05-01), Maxson
patent: 3461574 (1969-08-01), Larsen et al.
patent: D294714 (1988-03-01), Johnson
patent: D336320 (1993-06-01), Sher
Carl Sagan, “Cosmos”, 1980, pp. 262-265, Random House, Inc., New York.

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