Article Detail Who invented X-ray ? Answer: W.K. Roentgen of Germany in 1895. Similar Questions : 1. Who invented c language Answer: Dennis Ritchie 2. Who invented Atomic theory ? Answer: Dalton of Britain in 1803. 3. Who invented Automatic rifle ? Answer: John Browning of U.S.A. in 1918. 4. Who invented Morphine ? Answer: Friderich Sertumer of Germany in 1805 5. Who invented Atomic Bomb ? Answer: J. Robert Oppenheimer of U.S.A. in 1945 6. Who invented Gramophone ? Answer: Emile Berliner in 1887. 7. Who invented Steam Engine (Condenser) Answer: James Watt of Britain in 1765 Read more from - Important Inventions