A illustration of Thomas Edison's laboratory showing a man holding a vessel of mercury and using a vacuum pump to remove air from lamp bulbs | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / New York Public Library |
Bildgröße: | 2196 px × 3632 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: |
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