Category:1881 inventions

Media in category "1881 inventions"

The following 4 files are in this category, out of 4 total.

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  Drum brake by Walter Russell Mortimer 1881.png 2,320 × 3,408; 213 KB
  
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  Senator John Heinz History Center - IMG 7826.JPG 2,507 × 2,309; 1.71 MB
  
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  Vakuumgefäss 1881.jpg 1,057 × 3,484; 978 KB
  
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  Weinhold 1881 Physikalische Demonstrationen (partial).pdf 887 × 1,345, 5 pages; 959 KB