Pg.no. 123
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64. German Gottfried Leibniz
Isaac Newton
Von Brown
Volta
S.Morse
Igor Ivan rich Sikorsky
Karl Benz
BiroLadislao
Galilee
Michael Faraday
George Stephenson
Frank Whittle
Irving Langmuir
Rudolf Diesel
Humphrey Davy
Louis Daguerre
Count Ferdinand Von Zeppelin
Kirkpatrick Macmillan
Emile Berline
Elisha Otis
Robert Hutching Goddard
Hiram Stevens
Count Alessandro Volta
John Dunlop
Chester Carlson
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67.
68.
69.
70. Pellegrino Turri
Blaise Pascal
Julius Robert Oppenheimer
Joseph Aspdin
Augsberg
West via yarkand
Toothed Wheel
Law of Gravitation
Rocket
Current Electricity
Telegraph
Helicopter
Motorcar
Ball Point pen
Thermometer
Electric Generator
Steam Locomotive
Jet Engine
Tungsten Lamp
Diesel Engine
Davy Miners’ lamp
Practical Photographic process
Rigid frame airship
Bicycle
Gramophone disc
Lift
Space rocket
Automatic machine-gun
Electricity battery
Pneumatic bicycle tire
Xerography, dry photographic
copyright
Type writer
Adding machine
Atom Bomb
Cement
Glass
Paper