A Russian-American, Igor Sikorsky, invented the first working helicopter...however, Leonardo da vinci created the concept of a helicopter many years before Sikorsky was born.
There were many inventors of helicopters. I believe Igor Sikorsky was the best.
Apparently there was a demand because now there are thousands of helicopters.
According to my teacher, the original inventor is Armando Malite. Armalite got its name from the inventor.
Gandhiji
The refrigerator was invented in1911.The inventor was a french monk.
john wolfe
Louis Chevrolet
Konrad Zuse
Henry Ford
hana montana
He is the original inventor of the golf tee.
david mullany