Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Joshua Rumble Hiram Walker Giuseppe Mercalli Charles Richter Joshua Rumble Hiram Walker Giuseppe Mercalli Charles Richter ANSWER DOWNLOAD EXAMIANS APP
Inventions When was Milk Tray first introduced? 1915 1934 1942 1923 1915 1934 1942 1923 ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? C. Birdsey R. Scott G. Findus F. Rozenosh C. Birdsey R. Scott G. Findus F. Rozenosh ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the Raggedy Ann doll patented? 1911 1920 1919 1915 1911 1920 1919 1915 ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Burglar alarm Time-lock safe Automatic teller machine Pay telephone Burglar alarm Time-lock safe Automatic teller machine Pay telephone ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first lawn mower invented? 1854 1835 1830 1849 1854 1835 1830 1849 ANSWER DOWNLOAD EXAMIANS APP
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