Who invented the fountain pen ?
Waterman
Who was the inventor of ballpoint pen ?
John J Loud
Who is the inventor of refrigerator ?
James Harrison
Who invented the motor cycle ?
Edward Butler
Who invented the electric bulb ?
Thomas Alva Edison
Who invented the atom bomb ?
Otto Hahn
Who invented the electric fan ?
S Wheeler
Who invented the safety pin ?
Walter Hunt
Who is the inventor of jet aircraft ?
Frank Whittle
Who invented the aeroplane ?
Orville White and Willbur Wright