Constructional toy building elements
United States Patent 2442122
US Patent References:
/1009468.html
- - 1009468
Toy building blocks, tiles, bricks, and the like
- - 2119921
Building block
- - 2319914
/1009468.html
- - 1009468
Toy building blocks, tiles, bricks, and the like
- - 2119921
Building block
- - 2319914
Inventors:
Erhardt, Oscar P.
Publication Date:
05/25/1948
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Export Citation:
Assignee:
GILBERT CO A C
Primary Class:
Other Classes:
446/124, 446/110
International Classes:
A63H33/08; A63H33/04
Foreign References:
| GB365369A |