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jan 1, 1887 - Railroad Telegraph

Description:

in 1887, Granville Woods invented the railroad telegraph to help avoid train crashes and collisions.

Added to timeline:

3 months ago
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31
1844-1887 Inventions in the United States
A timeline of important and revolutionary inventions between...

Date:

jan 1, 1887
Now
~ 132 years ago

Images:

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