Category:Photophone

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<nowiki>Fotofono; Photophone; Фотофон; Photophon; Photophone; Ֆոտոֆոն; 光電話; フォトフォン; Фотофон; fotofon; Photophone; Fotofon; פוטופון; fotofoon; fotófono; Valopuhelin; Fotòfon; 광선전화; Photophone; هاتف ضوئي; Fotofon; فوتوفون; dispositivo di comunicazione che utilizza la luce; device invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter in 1880; جهاز إتصال; המצאה של אלכסנדר בל; устройство для передачи звуковых сигналов; Fotofono; ホトホン; 光電話機</nowiki>
Photophone 
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 16 files are in this category, out of 16 total.