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14 сент 1939 г. - Invention of the Helicopter

Описание:

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

Добавлено на ленту времени:

Military Technology History

ByBrandon Lucia

25 окт 2018

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0

657

Дата:

14 сент 1939 г.

Сейчас

~ 86 г назад

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