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Breguet telegraphy, 19th century

Breguet telegraphy, 19th century

C015/7008

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Credit

KING'S COLLEGE LONDON / SCIENCE PHOTO LIBRARY KING'S COLLEGE LONDON / SCIENCE PHOTO LIBRARY

Caption

Breguet telegraphy. French physicist Louis-Francois-Clement Breguet (1804-1883) who was a pioneer in this field. He and Alphonse Foy developed the electrical needle telegraph in 1842, with further work in 1847. Diagram from 'Traite de telegraphie electrique' (1849) by French Catholic priest and physicist Francois Napoleon Marie Moigno (1804-1884).

Release details

Model release not required. Property release not required.

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