Inventions What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? Television Telegraph Radio Dishwasher Television Telegraph Radio Dishwasher ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Elijah McCoy Jan Ernst Matzeliger Lewis Latimer Ernest Just Elijah McCoy Jan Ernst Matzeliger Lewis Latimer Ernest Just ANSWER DOWNLOAD EXAMIANS APP
Inventions What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? Blender Vacuum cleaner Washing machine Electric mixer Blender Vacuum cleaner Washing machine Electric mixer ANSWER DOWNLOAD EXAMIANS APP
Inventions What toy was invented by Joshua Lionel Cowen around 1900? Electric train Yo-yo Raggedy Ann doll Tinkertoys Electric train Yo-yo Raggedy Ann doll Tinkertoys ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Pneumatic rubber tire Model airplanes Rubber boot Automobile wheel rim Pneumatic rubber tire Model airplanes Rubber boot Automobile wheel rim ANSWER DOWNLOAD EXAMIANS APP
Inventions When was barb wire patented? 1900 1895 1840 1874 1900 1895 1840 1874 ANSWER DOWNLOAD EXAMIANS APP