Cowpers Writing Telegraph
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Cowpers Writing Telegraph
A diagram of Cowpers writing telegraph. Invented in 1878 by William Cowper (1819-1893), the machine was able to reproduce a message written some distance away by a process of interrupted electrical currents. This principle extended to recreating a hand-written message as a pencil transposed the movements of the current
Media ID 4353732
© Illustrated London News Ltd/Mary Evans
1819 1878 1879 1893 Cowper Current Currents Diagram Distance Electrical Extended Interrupted Invented Message Movements Pencil Principle Process Telegraph Written
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