Science, asked by UsmanRafiq, 1 year ago

who invented helicopter and when ?

Answers

Answered by Aarunya
1
Hey mate here is your answer :-
Igor Sikorsky invented helicopter on September 14 in 1939....
HOPE THIS HELPS YOU......
Answered by nilesh102
0

Igor Sikorsky and Paul Cornuinvented Helicopter On September 14, 1939.

Previous Question
Next Question
Similar questions
Social Sciences, 7 months ago
who study about the Earth​...
CBSE BOARD X, 7 months ago
financial statement user's include .​
Computer Science, 7 months ago
The instructions given in a pictorial representation is known as ________________ ​...
Geography, 1 year ago
what are the two major river system of India sub continent...
Science, 1 year ago
in a food chain of frog grass insect and snake assign tropic level to frog...
Computer Science, 1 year ago
What is inheritance.full details about inheritance...
English, 1 year ago
How ars face to face and telephonic interview are different?How would you prepare for an interview on skype?
Chemistry, 1 year ago
with the help of an activity show particulate nature if matter...