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Scientific American, Vol. 53, No. 22 (November 1885) (1885)

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An illustration from Scientific American, Vol. 53, No. 22 (November 1885), 1885, leaf 0
se of such an instrument abroad would not be suffi- P. Thompson, in London, the identical transmitter by saying: " The extraordinary results in the field of cient, in itself, to defeat BelFs subsequent patent. But and receiver exhibited and used by Philip Reis in telegraphy have probably often… … soon succeeded in proving that, Fig. l.-AN ORIGINAL EEIS TRANSMITTEE-FULL SIZE. the most part reproduced pretty without any change or addition distinctly, but the vowels, as yet, whatever except a single wooden The body of the transmitter consists of a block of wood pierced by a conical hole, over…

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