Phototelephone.


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    Title :

    Phototelephone


    Additional title:

    Ohm


    Contributors:
    Niwa, Y. (author)

    Published in:

    OHM ; 19 , n 5


    Publication date :

    1932


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Japanese


    Keywords :