Title:
Toy block
United States Patent 2278327

Inventors:
Ludwig, Magnus
Berthold, Meyerhof
Publication Date:
03/31/1942
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Assignee:
David, Greenberg B.
Meyerhof
Primary Class:
446/124
Other Classes:
D25/113, 446/114, 446/112, D21/491
International Classes:
A63H33/10; A63H33/04