Inventions When were blue jeans invented? 1870s 1860s 1850s 1900s 1870s 1860s 1850s 1900s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Jet Engine? Gottlieb Daimler Lewis E. Waterman Sir Frank Whittle Roger Bacon Gottlieb Daimler Lewis E. Waterman Sir Frank Whittle Roger Bacon ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? X ray machine Betatron Nuclear reactor Cyclotron X ray machine Betatron Nuclear reactor Cyclotron ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first Lionel trains manufactured? 1944 1920 1890 1901 1944 1920 1890 1901 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Fountain Pen? John J. Loud Kirkpatrick Macmillan Lewis E. Waterman Sir Frank Whittle John J. Loud Kirkpatrick Macmillan Lewis E. Waterman Sir Frank Whittle ANSWER DOWNLOAD EXAMIANS APP
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