Economy, asked by sahilkumar5847, 11 months ago

who was the founder of helicopter and when?​

Answers

Answered by soulQueen
1

Explanation:

Igor Sikorsky

Igor SikorskyOn September 14, 1939,

Answered by nilesh102
1

Igor Sikorsky and Paul Cornu invented Helicopter

On September 14, 1939.

Similar questions