Chemical fire extinguisher, hand cranked, using water, soda and sulfuric acid. 1919, W.S. Nott Company. Museum of the Rockies, Bozeman, Montana, USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source / Millard H. Sharp |
Bildgröße: | 5228 px × 3966 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |