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QWho invented/discovered Helicopter?

ID: #11754 Inventions in Physics 184 views
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#11754Q ID
ModerateDifficulty
Inventions in PhysicsTopic
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  • A Etienne Ochmichen ✔ ✖
  • B Westinghouse ✔ ✖
  • C Albert Sabin ✔ ✖
  • D James Simpson ✔ ✖
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Explanation

Helicopter invented/discovered by Etienne Ochmichen in the year 1924 [Country: France]
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