Transmitter of Ader's telephone, From Louis Figuier Les Nouvelles Conquetes de la Science, Paris, 1883.

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Photo credit: © World History Archive / Alamy / Afripics
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Keywords: ader, adertelephonereceiverlouis, archival, archive, figuierparisscienceelectricalelectriccommunication, historical, history, louis, receiver, telephone