National Telegraphic Union · New York : N.T.U. · leaf 76
Vol. IV.-No. 8. New-York, Saturday, October 19, 1867. Whole No. 66. BROWNoON AND SHULLS PATENT TELEGRAPHIC REPEATER. … Brownson and Shulls Telegraphic Repeater. This is a new invention, for which a patent was grantedon the 23d of July last, to W. G. Brownson and D. C.Shule, of Wellsville, Ohio. The principle of its opera-tion will be found clearly illustrated in the annexed dia-gram. The relay magnets are connected…
Telegraph
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