Tabulation by Canadian and United States railroads of installations in following classes: automatic block, retarders and switches in yards, centralized traffic control, interlocking, highway crossing protection, spring switches; table by type of construction for years 1942 through 1952. (See also Ry Age v 134 n 2 Jan 12 1953 p 202-7)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Signal construction [midline ellipsis] 1952


    Additional title:

    Ry Signaling Communications


    Contributors:
    Dunn, J.H. (author)


    Publication date :

    1953


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English