APPARATUS FOR PLAYING A MATHEMATICAL BOARD GAME
United States Patent 3460835
US Patent References:
Game of travel
- - 2399902

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- - 0300534

Puzzle
- - 1457383

Game apparatus
- - 1633445

Game
- - 2170909


Inventors:
Crans, David E.
Publication Date:
08/12/1969
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Assignee:
David, Crans E.
Primary Class:
273/236
Other Classes:
273/272, 273/153R
International Classes:
A63F3/02; A63F9/06; A63F3/00
US Patent References:
2871581Mathematical game
Foreign References:
GB174228A
GB844983A




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