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14 sept 1939 año - Invention of the Helicopter

Descripción:

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

Añadido al timeline:

Military Technology History

ByBrandon Lucia

25 oct 2018

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653

fecha:

14 sept 1939 año

Ahora mismo

~ 86 years ago

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