Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Jan Ernst Matzeliger Lewis Latimer Elijah McCoy Ernest Just Jan Ernst Matzeliger Lewis Latimer Elijah McCoy ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Automatic Telephone Exchanges Vending Machines Traffic Lights Parking Meters Automatic Telephone Exchanges Vending Machines Traffic Lights Parking Meters ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Barometer Bifocal spectacles Radio Hygrometer Barometer Bifocal spectacles Radio Hygrometer ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Fountain Pen? Lewis E. Waterman John J. Loud Sir Frank Whittle Kirkpatrick Macmillan Lewis E. Waterman John J. Loud Sir Frank Whittle Kirkpatrick Macmillan ANSWER DOWNLOAD EXAMIANS APP
Inventions What Sir Isaac Newton invented? Spectacles Chronometer Microscope Reflecting telescope Spectacles Chronometer Microscope Reflecting telescope ANSWER DOWNLOAD EXAMIANS APP
Inventions When was Milk Tray first introduced? 1923 1934 1942 1915 1923 1934 1942 1915 ANSWER DOWNLOAD EXAMIANS APP
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