Elisha Gray, American inventor, presenting the caveat for his telephone, 1876, (c1890). Gray (1835-1901) arrived at the US Patent Office at 4pm on 14 February 1876, just two hours after Alexander Graham Bell (1847-1922) had presented his own caveat for a telephone. From Les Nouvelles Conquetes de la Science by Louis Figuier. (Paris, c1890). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 3540 px × 4935 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |