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  • Who invented Helicopter ?

    Answer:

    Igor Sikorsky

Similar Questions :

1. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.

2. Who invented Laptop ?

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Adam Osborne in 1981.

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Willard Libby

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Helge Palmcrantz, Swedish inventor and industrialist

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Casimir Funk discovered in 1912

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