Category:Thomas Edison in 1892

Media in category "Thomas Edison in 1892"

The following 3 files are in this category, out of 3 total.

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  Perfected phonograph on which staff and Thomas Edison had marked 48 consecutive hours. Photo taken at 6 AM. Thomas Edison (5addd4a1a7d34d959a6ee6be0162c83b).jpg 4,221 × 3,082; 2.68 MB
  
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  Thomas Alva Edison, 1847-1931 LCCN2004676415.jpg 1,536 × 1,320; 236 KB
  
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  William Kennedy Laurie Dickson in 1892.jpg 1,006 × 1,001; 266 KB