Three-dimensional geometric puzzle

Amusement devices: games – Puzzles – Take-aparts and put-togethers

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A63F 912

Patent

active

061458376

ABSTRACT:
The present invention provides a three-dimensional geometric puzzle having a cube element, five triangular prism elements and a parallelepiped element. Each one or all of the elements of the puzzle are capable of being oriented such that they have a thickness equal to the length of an edge of the face of the cube element. The elements can also be juxtaposed in a predetermined fashion to form various geometric solids, such as a parallelepiped having a square face and a height equal to the length of a side of an edge of the cube element.

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Tangrams-330 Puzzles; Ronald C. Read; Dover Publications, Inc.; p. 1, original Tangrm, Jan. 1965 1 page.
Catalog, Math "Models for Geometry" pp. 84-85.

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