Image: Kempelen Speakingmachine
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Kempelen_Speakingmachine.JPG (750 × 561 pixels, file size: 215 KB, MIME type: image/jpeg)
Description: reconstruction of Kempelen's speaking machine
Title: Kempelen Speakingmachine
Credit: Own work
Author: Fabian Brackhane (Quintatoen), Saarbrücken
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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