Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Elijah McCoy Lewis Latimer Jan Ernst Matzeliger Ernest Just Elijah McCoy Lewis Latimer Jan Ernst Matzeliger ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? R. Scott G. Findus C. Birdsey F. Rozenosh R. Scott G. Findus C. Birdsey F. Rozenosh ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Automatic Telephone Exchanges Traffic Lights Vending Machines Parking Meters Automatic Telephone Exchanges Traffic Lights Vending Machines Parking Meters ANSWER DOWNLOAD EXAMIANS APP
Inventions What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? Blender Washing machine Vacuum cleaner Electric mixer Blender Washing machine Vacuum cleaner Electric mixer ANSWER DOWNLOAD EXAMIANS APP
Inventions The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name? Jack Croxford Baker Joseph Cyril Bamford John Christopher Baxter John Christopher Ballantyne Jack Croxford Baker Joseph Cyril Bamford John Christopher Baxter John Christopher Ballantyne ANSWER DOWNLOAD EXAMIANS APP
Inventions What toy was invented by Joshua Lionel Cowen around 1900? Yo-yo Tinkertoys Raggedy Ann doll Electric train Yo-yo Tinkertoys Raggedy Ann doll Electric train ANSWER DOWNLOAD EXAMIANS APP
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