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23 abr 1894 ano - Spark transmitter invented

Descrição:

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

Adicionado na linha do tempo:

History of Distance Learning

ByAndrew Harned
27 out 2018

Data:

23 abr 1894 ano
Agora
~ 130 years ago

Imagens:

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