File:Theatrophone - Clement Ader 1881.JPG

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:57, 21 November 2007		283 × 502 (22 KB)	commons>Utcursch	{{Information \|Description=''Théâtrophone''. Plan device théatrophone at the Opera during the World Exhibition in Paris (1881). \|Source=Th du Moncel, ''Le téléphone'', Librarie Hachette. \|Date=1887 \|Author=Clément Ader (1841-192

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