Category:Heroes of the Telegraph (1891)

Media in category "Heroes of the Telegraph (1891)"

The following 10 files are in this category, out of 10 total.

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  Heroes of the telegraph (IA cu31924031222494).djvu 1,377 × 2,158, 314 pages; 3.78 MB
  
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  Heroes of the telegraph (IA cu31924031222494).pdf 687 × 1,077, 314 pages; 6.3 MB
  
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  Heroes of the telegraph - Charles Wheatstone.jpg 1,076 × 1,255; 243 KB
  
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  Heroes of the telegraph - Charles William Siemens.jpg 1,059 × 1,250; 263 KB
  
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  Heroes of the telegraph - David Edwin Hughes.jpg 976 × 1,301; 236 KB
  
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  Heroes of the telegraph - Johann Philipp Reis.jpg 946 × 1,258; 303 KB
  
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  Heroes of the telegraph - Samuel Morse.jpg 1,081 × 1,380; 482 KB
  
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  Heroes of the telegraph - The Phonograph.jpg 1,905 × 1,275; 642 KB
  
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  Heroes of the telegraph - Thomas Alva Edison.jpg 951 × 1,562; 281 KB
  
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  Heroes of the telegraph - William Thomson.jpg 1,043 × 1,335; 349 KB