Inventions When were bar code scanners invented? 1940s 1960s 1970s 1950s 1940s 1960s 1970s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Diner's Club Visa Discover MasterCharge Diner's Club Visa Discover MasterCharge ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first lawn mower invented? 1835 1849 1854 1830 1835 1849 1854 1830 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Dynamite? Benjamin Franklin Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison Benjamin Franklin Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1810s 1890s 1870s 1840s 1810s 1890s 1870s 1840s ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Parking Meters Automatic Telephone Exchanges Traffic Lights Vending Machines Parking Meters Automatic Telephone Exchanges Traffic Lights Vending Machines ANSWER DOWNLOAD EXAMIANS APP
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