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jan 1, 1892 - Innovation: Rotary Hammar Drill

Description:

Invented in 1892

Was a new type of drill to rotate making it easier to work with. It rotated making sure it went all the way around.

Added to timeline:

Invention Timeline

BySophia Lamarre

17 Apr 2018

0

0

407

Date:

jan 1, 1892

Now

~ 134 years ago

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