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    Title :

    FROGS IN SPACE


    Contributors:

    Published in:

    Spaceflight ; 39 , 7


    Publication date :

    1997



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Unknown


    Keywords :

    Classification :

    Local classification TIB:    275/7040
    BKL:    55.60 Raumfahrttechnik / 55.60



    Formulas for locating frogs

    Howe, Malverd A. | Engineering Index Backfile | 1899


    Thermit welding of frogs

    Gollwitzer, A. | Engineering Index Backfile | 1928


    Update on Spring Rail Frogs

    Baker, J. D. / American Railway Engineering and Maintenance of Way Association | British Library Conference Proceedings | 1998


    Railroad track frogs and switches

    Ellis, W.F. | Engineering Index Backfile | 1888


    Railroad track frogs and switches

    Engineering Index Backfile | 1888