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Railway Signaling and Communications

Published: 1908

Total Pages: 644

Railroad Gazette

Published: 1905

Total Pages: 864

E M F Electrical Year Book

Published: 1923

Total Pages: 1234

The Americana

Frederick Converse Beach

Published: 1912

Total Pages: 806

The Americana

Published: 1911

Total Pages: 906

NBS Special Publication

Published: 1932

Total Pages: 566

National Bureau of Standards Miscellaneous Publication

Published: 1947

Total Pages: 336

The Encyclopedia Americana

Frederick Converse Beach

Published: 1904

Total Pages: 782

Miscellaneous Publications

Published: 1932

Total Pages: 564

National Directory of Commodity Specifications

United States. National Bureau of Standards

Published: 1932

Total Pages: 554