Resultados
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Railway signal systems : hearing before subcommittee, 74th Congress, 2d session, on H.R. 2748, to promote safety of employees and travelers on railroads by requiring common carriers engaged in interstate commerce to intall [sic], inspect, test, repair, and maintain block signal systems, interlocking, highway grade crossing protective devices, automatic train stop, train control, cab signal devices, and other appliances, methods, and systems intended to promote safety of railroad operation, Mar. 4, 1936. por
Detalles de publicación: [Washington, D.C.], 1936
Disponibilidad: No hay ítems disponibles.
valoración
Valoración media: 0.0 de 5 estrellas
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Railway signal systems : hearing, 75th Congress, 1st session, on H.R. 185, to promote safety of employees and travelers on railroads by requiring common carriers engaged in interstate commerce to install, inspect, test, repair, and maintain block-signal systems, interlocking, highway grade crossing protective devices, automate train-stop, train-control, cab-signal devices, and other appliances, methods, and systems intended to promote safety of railroad operations, Mar. 19, 1937. por
Detalles de publicación: [Washington, D.C.], 1937
Disponibilidad: No hay ítems disponibles.
valoración
Valoración media: 0.0 de 5 estrellas
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Six-hour day for train-dispatching offices : hearings before subcommittee, 75th Congress, 3d session, on H.R. 4358, to limit hours of service of train dispatchers employed by carriers engaged in interstate commerce to 6 hours in any 24-hour period, to establish 6-hour day for such train dispatchers, and for other purposes, May 5 [6]-June 4, 1938. por
Detalles de publicación: [Washington, D.C.], 1938
Disponibilidad: No hay ítems disponibles.
valoración
Valoración media: 0.0 de 5 estrellas
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