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