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typewriter
Invented by Christopher Scholes -
Telephone
Invented by Alexander Graham Bell. -
Crude metal detector
Invented by Alexander Graham Bell. -
Steam turbine
Invented by Charles Parson. Involves electricity -
Dishwasher
Invented by Josephine Cochrane. -
Coca Cola
Invented by John Pemberton. -
Contact lenses
Invented by F.E. Muller and Adolph Fick. -
Escalator
Invented by Jesse W. Reno -
Zipper
Invented by W.L Judson. -
Roller Coaster
Invented by Edwin Prescott. -
Vacuum cleaner
Invented by John Thurman. Involves electricity. -
Air conditioner
Invented by Willis Carrier. Involves electricity. -
Lie Detector
Invented by James Mackenzie. -
Crayons
Co-invented by Edward Binney and Harold Smith. -
Cornflakes
Invented by William Kellogg -
Electric Amplifier
Invented by Lee De Forest. Involves electricity -
First Car Sold(model T)
Invented by Henry Ford. -
Instant Coffee
Invented by G. Washington. -
Electical refidgerator
Invented by Fred Wolf. Involves electricity -
Crossword Puzzle
Invented by Arthur Wynne.