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Excerpt from The Telephone, the Microphone and the Phonograph: Authorized Translation, With Additions and Corrections by the Author, With 70 Illustrations on Woods The rods a, c, which support the platinum point b, are in metallic contact with a Morse key, t, placed on the side of the box K, and with an electro - magnet, A, which belongs to a tele graphic system, intended to exchange the signals required to start the action of the two instruments at their respective stations. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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The Telephone, the Microphone and the Phonograph: Authorized Translation, with Additions and Corrections by the Author, with 70, Th Du Moncel
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- Année de publication
- 2018
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