bn:03435367n
Noun Named Entity
Categories: United States Naval Academy alumni, 1857 births, John Fritz Medal recipients, Sprague family, American railroad mechanical engineers
EN
Frank J. Sprague  Frank Julian Sprague  Frank Sprague  Franklin J. Sprague  Sprague Electric Railway & Motor Company
EN
Frank Julian Sprague was an American inventor who contributed to the development of the electric motor, electric railways, and electric elevators. Wikipedia
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EN
Frank Julian Sprague was an American inventor who contributed to the development of the electric motor, electric railways, and electric elevators. Wikipedia
American naval officer and inventor Wikipedia Disambiguation
American naval officer and inventor, notable for development of electric machinery Wikipedia Disambiguation
American naval officer and railroad pioneer Wikidata