Inventions When was the first elevator built? 1760 1739 1743 1785 1760 1739 1743 1785 ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? MasterCharge Visa Diner's Club Discover MasterCharge Visa Diner's Club Discover ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? X ray machine Nuclear reactor Betatron Cyclotron X ray machine Nuclear reactor Betatron Cyclotron ANSWER DOWNLOAD EXAMIANS APP
Inventions Which of the following was first patented by an Australian in 1889? Electric Fence Electric Drill Electric Heater Electric Shaver Electric Fence Electric Drill Electric Heater Electric Shaver ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Robert Koch Louis Pasteur Edward Jenner Robert Hooke Robert Koch Louis Pasteur Edward Jenner Robert Hooke ANSWER DOWNLOAD EXAMIANS APP
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