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