Article Detail Who invented Barometer ? Answer: Evangelista Torricelli of Italy in 1644 Similar Questions : 1. Who invented Atomic theory ? Answer: Dalton of Britain in 1803. 2. Who invented Laptop ? Answer: Adam Osborne in 1981. 3. Who invented Bakelite ? Answer: Leo H. Baekeland of Belgium in 1907. 4. Who invented Vitamin K ? Answer: Doisy Dam of U.S.A. in 1938. 5. Who invented Chemotherapy ? Answer: Paracelsus of Switzerland 6. Who invented Proton ? Answer: Ernest Rutherford 7. Who invented Safety razor ? Answer: King Camp Gillette of U.S.A. in 1903 Read more from - Important Inventions