Telegraphone: magnetic recording telephone invented by vlademar Poulsen (1869-1942) He applied for a patent on 1st December 1898, and the instrument aroused great interest at the Paris Exposition of 1900.

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Telegraphone: magnetic recording telephone invented by vlademar Poulsen (1869-1942) He applied for a patent on 1st December 1898, and the instrument aroused great interest at the Paris Exposition of 1900.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, expositionribbon, historical, history, magnetic, poulsenpatentparis, recording, telegraphone, telegraphoneelectricelectricalelectricityparisfrancecommunication, telegraphonemagneticrecordingtelephonevlademar