Tabulation of statistics pertaining to block signals, interlocking plants and the telegraph and the telephone for transmission of train orders as used on the railroads of the United States.
Description
- Language(s)
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English
- Published
-
Washington : G.P.O., 1914-
- Note
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Title from cover.
Title varies slightly.
At head of title: Interstate Commerce Commission.
Also issued online.
Compiled by: 1914, Division of Safety Appliances; 1915-1917, Division of Safety; 1918-1924, Bureau of Safety; 1925-1928, Bureau of Signals and Train Control Devices; 1929-1954, Bureau of Safety; 1955-, Bureau of Safety and Service.
- Physical Description
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volumes ;
27 x 45 cm
Viewability