Inventions Who invented Bakelite? Charles Goodyear Roy Plunkett Henry Ford Leo Hendrik Baekeland Charles Goodyear Roy Plunkett Henry Ford Leo Hendrik Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions What furniture item was invented by California furniture designer Charles Prior Hall in 1968? Hammock Sofa bed Captain's chair Waterbed Hammock Sofa bed Captain's chair Waterbed ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Ethyl gasoline Radar Sonar Jet propulsion Ethyl gasoline Radar Sonar Jet propulsion ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1890s 1800s 1900s 1880s 1890s 1800s 1900s 1880s ANSWER DOWNLOAD EXAMIANS APP
Inventions What Sir Isaac Newton invented? Microscope Reflecting telescope Spectacles Chronometer Microscope Reflecting telescope Spectacles Chronometer ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1739 1743 1785 1760 1739 1743 1785 1760 ANSWER DOWNLOAD EXAMIANS APP
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