Three-dimensional didactic toy

Details Three-dimensional didactic toy Three-dimensional didactic toy

2007-06-19

2007-06-19

Zarfas, Louis (Department: 2914)

Office supplies; artists and teachers materials

Teaching material

Demonstrator or exhibitor

Design Patent

active

29241093

CLAIM:
I claim the ornamental design for a three-dimensional didactic toy, as shown and described.

REFERENCES:
patent: 1981646 (1934-11-01), Hamley
patent: D184396 (1959-02-01), Jenkins
patent: 5660387 (1997-08-01), Stokes
patent: D388826 (1998-01-01), Jones-Fenleigh et al.
patent: D426265 (2000-06-01), Black
patent: 6813841 (2004-11-01), Ramsey

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