Twinkle Toes Engineering
Frank J. Sprague Invents: The Constant-Speed dc Electric Motor [History]
The Birth of Electric Traction: the extraordinary life and times of inventor Frank Julian Sprague: Rowsome, Frank, Sprague, John L.: 9781490955346: Amazon.com: Books
Frank Sprague - Electrical Pioneer
Inventor Frank J. Sprague poses next to electrical components on the... News Photo - Getty Images
The Shore Line Trolley Museum: Articles: Sprague Collection
The Shore Line Trolley Museum: Articles: Sprague Collection
Frank Sprague, US electrical engineer - Stock Image - C038/2622 - Science Photo Library
IEEE Milestone:Richmond Union Passenger Railway, 1888 - Engineering and Technology History Wiki
The Shore Line Trolley Museum: Articles: Sprague Collection
Frank J. Sprague - Wikipedia
The Electric Railway in Western Maryland – Our History, Our Heritage
The Shore Line Trolley Museum: Articles: Sprague Collection
Frank Sprague | Lemelson
Straphanger History: Pre-Subway Transportation - Engineering and Technology History Wiki
Frank Sprague - Electrical Pioneer
The Shore Line Trolley Museum: Articles:Sprague Reception
History | IEEE Power & Energy Magazine
The Forgotten Hero of the American Subway | American Experience | Official Site | PBS
The Early Years
FRANK SPRAGUE
Frank Julian Sprague: Electrical Inventor and Engineer (Railroads Past and Present): Middleton III, William D.: 9780253353832: Amazon.com: Books
Frank Julian Sprague — Welcome
