Inventions What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? Telegraph Television Dishwasher Radio Telegraph Television Dishwasher Radio ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1743 1760 1785 1739 1743 1760 1785 1739 ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? MasterCharge Discover Visa Diner's Club MasterCharge Discover Visa Diner's Club ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Bifocal spectacles Radio Hygrometer Barometer Bifocal spectacles Radio Hygrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1970s 1950s 1960s 1940s 1970s 1950s 1960s 1940s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1800s 1890s 1900s 1880s 1800s 1890s 1900s 1880s ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS