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14 Sept 1939 Jahr - Invention of the Helicopter

Beschreibung:

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

Zugefügt zum Band der Zeit:

Military Technology History

ByBrandon Lucia

25 Okt 2018

0

0

657

Datum:

14 Sept 1939 Jahr

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~ 86 years ago

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