Features of electric locking scheme for spring switch; standard rod with plunger operated by motor-driven mechanism; automatic or remote control; track plan and circuit diagram for control of lock.


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    Title :

    Electric lock for spring switch


    Additional title:

    Ry Signaling


    Contributors:

    Published in:

    Publication date :

    1932


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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