1. Who invented Printing Press ?

Answer:

Johannes Gutenberg

2. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

3. Who invented HIV ?

Answer:

4. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

5. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

6. Who invented colour television ?

Answer:

Peter Carl Goldmark

7. Who invented Laser ?

Answer:

Charles H. Townes