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14 sept. 1939 - Invention of the Helicopter

Description:

The Unites States Aircraft Corporation creates the VS-300 with design help from Igor Sikorsky.

Ajouté au bande de temps:

Military Technology History

ByBrandon Lucia

25 oct. 2018

0

0

657

Date:

14 sept. 1939

Maintenaint

~ Il y a 86 ans

Les images:

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