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April 1, 2024
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9 gen 1887 anni - Railroad Telegrph

Descrizione:

Date:1887
inventor: Granville Woods
Purpose: To reduce risk of collisions by allowing trains to communicate

Aggiunto al nastro di tempo:

4 set 2018
0
0
131
history

Data:

9 gen 1887 anni
Adesso
~ 137 years ago

Immagini:

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