New communications systems of freight classification yard at Springfield, Mo; systems connect assistant general yardmaster with 5 pairs of paging speakers, 63 talk back speakers in yard, 5 indoor talk back speakers in yard buildings, and by radio with 7 locomotives used in yard and for serving industries throughout city.


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    Titel :

    Radio and loudspeaker systems expedite yard operations on Frisco


    Weitere Titelangaben:

    Ry Signaling Communications


    Erschienen in:

    Erscheinungsdatum :

    1950


    Format / Umfang :

    4 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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