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Inventors
ORVILLE
Leroy R. Posey
Main Entry
Leroy R. Posey
Patent Title
Educational Device
Family Name
Posey
Given Name
Leroy
Middle Name
R.
Patent Date
January 30, 1940
Patent Number
2,188,723
Location
LA
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008