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23 abr 1894 año - Spark transmitter invented

Descripción:

Guglielmo Marconi invented the spark transmitter and obtained the first patent for a radio device (Omaha World Herald, 1897; Buckland & Dye, 1991).

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History of Distance Learning

ByAndrew Harned

27 oct 2018

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23 abr 1894 año

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