Title:
Educational toy blocks
United States Patent 2482402
US Patent References:
/1172385.html
- - 1172385
Combination of devices for teaching infants
- - 1329850
Educational device
- - 1396379
Educational appliance
- - 2014675
/1172385.html
- - 1172385
Combination of devices for teaching infants
- - 1329850
Educational device
- - 1396379
Educational appliance
- - 2014675
Inventors:
Corcodilos, James N.
Publication Date:
09/20/1949
View Patent Images:
Export Citation:
Assignee:
Corcodilos, James N.
Primary Class:
Other Classes:
446/117
International Classes:
A63H33/10; A63H33/04
Foreign References:
| DE180886C | ||||
| DE514637C | ||||
| DE553254C |