Inventions What Benjamin Franklin invented? Bifocal spectacles Hygrometer Radio Barometer Bifocal spectacles Hygrometer Radio Barometer ANSWER DOWNLOAD EXAMIANS APP
Inventions What Elisha Otis invented? Hydraulic Crane Turbine The brake used in modern elevators Jet Engine Hydraulic Crane Turbine The brake used in modern elevators Jet Engine ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Dynamite? Benjamin Franklin Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison Benjamin Franklin Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions What toy was invented by Joshua Lionel Cowen around 1900? Raggedy Ann doll Tinkertoys Yo-yo Electric train Raggedy Ann doll Tinkertoys Yo-yo Electric train ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Traffic Lights Parking Meters Automatic Telephone Exchanges Vending Machines Traffic Lights Parking Meters Automatic Telephone Exchanges Vending Machines ANSWER DOWNLOAD EXAMIANS APP
Inventions When was barb wire patented? 1895 1874 1840 1900 1895 1874 1840 1900 ANSWER DOWNLOAD EXAMIANS APP
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