
même sujet
Thomas Alva Edison
Sujet
Keeping in touch with Edison's aerophone, c1878. Artist: Unknown
Légende
Keeping in touch with Edison's aerophone. Patented in 1878, Thomas Edison's aerophone was a device to amplify the volume of human speech.
Date
1964
Crédit
Photo12/Heritage Images/Keystone Archives
Notre référence
HRM19D70_120
Model release
Non
Licence
Droits gérés
Format disponible
50,0Mo (1,9Mo) / 41,8cm x 30,0cm / 4932 x 3545 (300dpi)