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SCIENTIFIC INVENTION Invention Inventor Crescograph Jagadish Chandra Bose Cataract Surgery Sushruta (6 century B.C) Barometer E. Torricelli Diesel Engine Rudolf Christian Karl Diesel Peniciline F. Banting Telegraph Samuel Morse Radio William Lear Bullet Claude Dynamite Alfred Nobel Bifocal Lens Benjamin Franklin LCD Hoffmann-La- Roche Machine Gun Richard Gatling Oxygen Joseph Priestly Piano B. Cristofori Revolver Samuel Colt Safety Pin Walter Hunt Type Writer Cristopher Sholes WWW Tim Berners-Lee Printing press Gutenberg Cosmic Ray R. A. Millikan Helicopter Louis ...