1. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

2. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

3. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903

4. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

5. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

6. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

7. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.