Thomas Alva Edison, American physicist and inventor, 1929. Obverse of a medal celebrating the 50th anniversary of Edison's (1847-1931) invention of the incandescent lamp in 1879. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 4357 px × 4007 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |