Educational game
United States Patent 3302311
US Patent References:
/0061531.html
- - 0061531

/0523676.html
- - 0523676

Means for devising ornamental designs
- - 1453728

Toy
- - 1636371

Educational device
- - 1995154


Inventors:
Israel, Dorothy M.
Publication Date:
02/07/1967
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Assignee:
Israel, Dorothy M.
Primary Class:
434/402
Other Classes:
273/155, 273/157R
International Classes:
A63F9/12; A63F9/00; A63F9/06
US Patent References:
2429027Educational toy
2899757
2981009Educational building block set