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4 nov 1939 año - First practical helicopter was made.

Descripción:

Igor Sikorsky, a Russian-American inventor created the first practical to use helicopter called the VS-300 which was a single rotor aircraft.

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Technology Timeline

ByBenjamin Snyder
3 may 2018
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0
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fecha:

4 nov 1939 año
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~ 84 years ago
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