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9 jan 1939 ano - Invention of war helicopter

Descrição:

The helicopter was invented a long time before but had never been armed before, now this was a super weapon

Adicionado na linha do tempo:

Millitary Advancements from 1800-1950

ByNathan O'Sullivan

14 dez 2018

1

1

411

Data:

9 jan 1939 ano

Agora

~ 86 years ago

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