Title:
Educational game board
United States Patent 1668328


Inventors:
Martien, Bertha L.
Application Number:
US12599926A
Publication Date:
05/01/1928
Filing Date:
07/30/1926
Assignee:
Martien, Bertha L.
Primary Class:
Other Classes:
273/DIG.27
International Classes:
G09B21/00
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