Abstract
FOR the last eighteen months a system has been in active operation in Belgium whereby the ordinary telegraph wires are used to convey telephonic communications at the same time that they are being employed in their ordinary work of transmitting telegraphic messages. This system, the invention of M. Van Rysselberghe, whose previous devices for diminishing the evil effects of induction in the telephone service will be remembered, has lately been described in the Journal Télégraphique of Berne by M. J. Banneux of the Belgian Telegraph Department. Our information is derived from this article and from others by M. Hospitalier.
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Telephony and Telegraphy on the Same Wires Simultaneously . Nature 29, 554–556 (1884). https://doi.org/10.1038/029554a0
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DOI: https://doi.org/10.1038/029554a0