Hughes typewriting telegraph instrument, unknown maker, 1860. Invented about 1855 by David E Hughes (1829/31-1900), US patent numbers, 14,917, 1856; 22,531, 1859 and 22,770, 1859; British patent ...
The electric telegraph, comprising a brief history of former modes of telegraphic communication, an account of the electric clock, Brett and Little's electro-telegraphic converser, Bain's printing ...
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