Inventions What Thomas Davenport invented? Screw propellor Sleeping (railway) car Electric streetcar Chesterfield Screw propellor Sleeping (railway) car Electric streetcar Chesterfield ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1940s 1960s 1970s 1950s 1940s 1960s 1970s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions CORN FLAKES - Who made them first? Kellogg Nabisco Quaker Archers Kellogg Nabisco Quaker Archers ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Charles Richter Giuseppe Mercalli Hiram Walker Joshua Rumble Charles Richter Giuseppe Mercalli Hiram Walker Joshua Rumble ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first lawn mower invented? 1854 1849 1835 1830 1854 1849 1835 1830 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1880s 1900s 1890s 1800s 1880s 1900s 1890s 1800s ANSWER DOWNLOAD EXAMIANS APP
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