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Cover of Elmer Sperry; inventor and engineer

Elmer Sperry; inventor and engineer

by Thomas Parke Hughes

Sperry, elmer ambrose, 1860-1930InventorsBiographyEngineers

Writing a summary for young readers…

For young readers

Book data: Open Library

Book Glossary · bookglossary.comA nonprofit resource from Dover Public Library and the Tuscarawas County Literacy Coalition.