Category:Photophone
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device invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter in 1880  | |||||
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Media in category "Photophone"
The following 15 files are in this category, out of 15 total.
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1930's illumiated sign for sound film system.jpg 1,024 × 682; 214 KB
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72a61.png 648 × 280; 48 KB
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Bells Photophon Schema.jpg 640 × 396; 36 KB
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Demeny animation photophone.gif 202 × 265; 240 KB
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Demeny, Je vous aime, Animation.gif 365 × 265; 1.55 MB
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Die Gartenlaube (1880) b 788.jpg 1,566 × 822; 644 KB
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Franklin050.JPG 2,272 × 1,704; 472 KB
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Meyers b13 s0028 b2.png 377 × 244; 14 KB
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Photophone de Demeny.png 842 × 1,070; 1.04 MB
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Photophone plaque (no copyright applies).jpg 641 × 438; 64 KB
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Photophone receiver 4074172975 288f2808f0 o.jpg 814 × 1,243; 271 KB
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Photophone transmitter 4074931746 9f996df841 b.jpg 1,024 × 756; 635 KB
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Photophone.jpg 450 × 196; 21 KB
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Photophone2.jpg 450 × 308; 59 KB
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Photophony1.jpg 577 × 384; 24 KB
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