1. Who invented Safety razor ?

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

2. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

3. Who invented Television ?

Answer:

John Logie Baird

4. Who invented Helicopter ?

Answer:

Igor Sikorsky

5. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

6. Who invented Printing Press ?

Answer:

Johannes Gutenberg

7. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912