Inventions Who invented Bifocal Lens? Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? Nuclear reactor Betatron Cyclotron X ray machine Nuclear reactor Betatron Cyclotron X ray machine ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Automatic teller machine Pay telephone Burglar alarm Time-lock safe Automatic teller machine Pay telephone Burglar alarm Time-lock safe ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Elijah McCoy Lewis Latimer Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer Ernest Just Jan Ernst Matzeliger ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the Raggedy Ann doll patented? 1915 1920 1911 1919 1915 1920 1911 1919 ANSWER DOWNLOAD EXAMIANS APP
Inventions This part-time race car driver invented the bucket seat in 1969. Who was he?? John Wayne Steve McQueen Harrison Frazier Paul Newman John Wayne Steve McQueen Harrison Frazier Paul Newman ANSWER DOWNLOAD EXAMIANS APP
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