Article Detail Who invented Helicopter ? Answer: Igor Sikorsky Ad Similar Questions : 1. Who invented google ? Answer: Larry Page 2. Who invented Electron ? Answer: Thomson. J of Britain in 1897 3. Who invented Radar ? Answer: Sir Robert Watson-Watt 4. Who invented Proton ? Answer: Ernest Rutherford 5. Who invented Steam Engine (Condenser) Answer: James Watt of Britain in 1765 6. Who invented Gramophone ? Answer: Emile Berliner in 1887. 7. Who invented Bicyle ? Answer: Kirkpatrick Macmillan of Britain. Read more from - Important Inventions