Inventions When was the toothbrush invented? 1770 1742 1790 1765 1770 1742 1790 1765 ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Radar Ethyl gasoline Sonar Jet propulsion Radar Ethyl gasoline Sonar Jet propulsion ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Jan Ernst Matzeliger Ernest Just Elijah McCoy Lewis Latimer Jan Ernst Matzeliger Ernest Just Elijah McCoy Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the Internet first implemented? 1950s 1980s 1940s 1960s 1950s 1980s 1940s 1960s ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first lawn mower invented? 1849 1835 1830 1854 1849 1835 1830 1854 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the BALLPOINT PEN? Bicc Brothers Write Brothers Waterman Brothers Biro Brothers Bicc Brothers Write Brothers Waterman Brothers Biro Brothers ANSWER DOWNLOAD EXAMIANS APP
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