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apr 25, 1836 - EL TELÉGRAFO

Description:

David Alter, es un aparato que emplea señales electricas para la transmisión de mensajes de textos codificados, surgió en Elderton, Pensilvania.

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Evolucion de la tecnologia AyD

Byalejandro marin

2 Oct 2018

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Date:

apr 25, 1836

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~ 189 years ago

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