Article Detail Who invented by Electric Lamp ? Answer: Thomas Alva Edison of U.S.A. in 1879 Similar Questions : 1. Who invented Penicillin ? Answer: Alexander Fleming of Britain in 1928. 2. Who invented X-ray ? Answer: W.K. Roentgen of Germany in 1895. 3. Who invented Stethoscope ? Answer: Laennec of French in 1819. 4. Who invented Chloroform as anaesthetic ? Answer: James Simpson of Britain in 1847. 5. Who invented Transistor ? Answer: Bardeen, Shockley & Britain of U.S.A. in 1948 6. Who invented Diesel Engine ? Answer: Rudoff Diesel of Germany in 1895 7. Who invented Vitamin C ? Answer: Scottish naval surgeon James Lind in 1747 Read more from - Important Inventions