Wikimedi'Òc

VODER demonstrated on 1939 New York World Fair - The VODER fascinates the crowds - Bell Telephone Quarterly (January 1940).jpg - Fæ

Bell telephone magazine (1922) (14753464041).jpg - Fæ

VODER demonstrated on 1939 New York World Fair - lining up for hearing tests - Bell Telephone Quarterly (January 1940).jpg - Fæ

VODER demonstrated on 1939 New York World Fair - Audition! Hearing themselves as others heard them - Bell Telephone Quarterly (January 1940).jpg - Fæ

Voder room at 1939 New York World's Fair.jpg - Opencooper

Homer Dudley (October 1940). "The Carrier Nature of Speech". Bell System Technical Journal, XIX(4);495-515. -- Fig.5 The voder being demonstrated at the New York World's Fair.jpg - Clusternote

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18646.jpg - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18647.jpg - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18646.tif - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18648.jpg - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18647.tif - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18648.tif - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18649.tif - Fæ

World's Fair, American Telephone & Telegraph Company. LOC gsc.5a18649.jpg - Fæ

World's Fair, American Telephone & Telegraph Building. LOC gsc.5a03441.jpg - Fæ

World's Fair, American Telephone & Telegraph Building. LOC gsc.5a03441.tif - Fæ

World's Fair. LOC gsc.5a30849.jpg - Fæ