Inventions Who invented Bakelite? Leo Hendrik Baekeland Henry Ford Roy Plunkett Charles Goodyear Leo Hendrik Baekeland Henry Ford Roy Plunkett Charles Goodyear ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? G. Findus R. Scott C. Birdsey F. Rozenosh G. Findus R. Scott C. Birdsey F. Rozenosh ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? Radio Dishwasher Television Telegraph Radio Dishwasher Television Telegraph ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Pay telephone Automatic teller machine Time-lock safe Burglar alarm Pay telephone Automatic teller machine Time-lock safe Burglar alarm ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the battery? Alessandro Volta John Wilkinson James Hargreaves Thomas Edison Alessandro Volta John Wilkinson James Hargreaves Thomas Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1810s 1870s 1890s 1840s 1810s 1870s 1890s 1840s ANSWER DOWNLOAD EXAMIANS APP
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