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