Title:
Arithmetic card game
United States Patent 2562633


Inventors:
Bennett, Needham Irene
Application Number:
US13291749A
Publication Date:
07/31/1951
Filing Date:
12/14/1949
Assignee:
Bennett, Needham Irene
Primary Class:
Other Classes:
273/292, 434/191, D19/64
International Classes:
A63F1/02
View Patent Images:
US Patent References:
1730418Apparatus for teaching mathematics1929-10-08
1598450Game cards1926-08-31
1528061Calculating game1925-03-03
1322204N/A1919-11-18
0705579N/A1902-07-29
Foreign References:
GB188705539A
GB204157A1923-09-27