Francois Sudre's telephone, illustration. Telephonic experiments by Francois Sudre at the Champ de Mars, Paris, 1829. Engraving in: Les Merveilles de la Science (The Wonders of Science), by Louis Figuier, France, 1868. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CCI Archives |
Bildgröße: | 4827 px × 3620 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |