historia telegrafo

By facebooker_2216475551928059
  • 6000 BCE

    señales de humo

  • 5000 BCE

    tam tam

  • 150 BCE

    telegrafo hidraulicos

  • 25

    telegrafo heliografo

  • señales de bandera

  • telegrafo chappe

  • telegrafo murray

  • agustin de betancourt

  • telegrafo optico mathe

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