Concerning the construction of the two Twin-tube shield-driven tunnels, the compressed air work, shaft construction, shield construction, etc. (3800 w.) (No. 77929)


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    Title :

    The tunnel work of the Pennsylvania Railroad under the East River


    Additional title:

    Eng News


    Published in:

    Publication date :

    1906


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :