Concept ID: CBA000128405

Railroad Signals

Show 5 citations related to Railroad Signals
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Article Isabel Rábano Gutiérrez del Arroyo (2022)
El ingeniero de minas Manuel Fernández de Castro y Suero y su privilegio de invención (1853) para evitar accidentes ferroviarios. Llull: Revista de la Sociedad Española de Historia de las Ciencias y de las Técnicas (pp. 145-158). (/isis/citation/CBB758053399/) unapi

Book Brian Solomon (2015)
Classic Railroad Signals: Semaphores, Searchlights, and Towers. (/isis/citation/CBB624904223/) unapi

Article William J. Doyle (Fall/Winter 2010)
Telephone Train Order Signals. Railroad History (pp. 56-64). (/isis/citation/CBB764983620/) unapi

Article Roma, Jon (Fall/Winter 2010)
Changing of the Guard: Marking the End of the "Armstrong" era. Railroad History (pp. 65-69). (/isis/citation/CBB508546074/) unapi

Article Donald F. Morrison (Fall/Winter 2010)
Railroad Signal Innovator. Railroad History (pp. 51-55). (/isis/citation/CBB346763541/) unapi

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