Block puzzle
United States Patent 3222072
US Patent References:
/0956632.html
- - 0956632

Child's block set
- - 2513596

Puzzle toy
- - 2617654

Articulated toy set of building blocks
- - 2825178

Amusement device
- - 3069805


Inventors:
Dreyer, Allen F.
Publication Date:
12/07/1965
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Assignee:
Universal, Res
Primary Class:
273/157R
Other Classes:
446/119, 273/155, 273/153R
International Classes:
A63F9/08; A63F9/06