Title:
Constructional toy building elements
United States Patent 2442122
Inventors:
Erhardt, Oscar P.
Publication Date:
05/25/1948
Export Citation:
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Assignee:
GILBERT CO A C
Primary Class:
446/128
Other Classes:
446/110, 446/124
International Classes:
A63H33/08; A63H33/04
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US Patent References:
2319914Building block
2119921Toy building blocks, tiles, bricks, and the like
1009468N/A
Foreign References:
GB365369A