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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
By
Brandon Lucia
25 oct. 2018
0
0
460
Date:
14 sept. 1939
Maintenaint
~ Il y a 84 ans
Les images:
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