Category:Telephone by Elisha Gray

Media in category "Telephone by Elisha Gray"

The following 6 files are in this category, out of 6 total.

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  Bell-gray-smoking-gun.png 881 × 659; 341 KB
  
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  Gray-telephone-caveat.gif 432 × 657; 162 KB
  
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  Gray-telephone-notebook.gif 605 × 362; 64 KB
  
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  Model of Alexander Graham Bell's first telephone, with Elisha Gray caveat - Telephone Museum - Waltham, Massachusetts - DSC08120.jpg 5,010 × 3,248; 5.63 MB
  
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  PSM V17 D023 Microphone and speaker by elisha gray 1874.jpg 1,609 × 723; 59 KB
  
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  PSM V17 D027 Carbon microphone of Elisha Gray.jpg 879 × 1,109; 179 KB