Inventions Who invented Bifocal Lens? Benjamin Franklin Alfred B. Nobel Rudolf Diesel Thomas Alva Edison Benjamin Franklin Alfred B. Nobel Rudolf Diesel Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bakelite? Henry Ford Roy Plunkett Charles Goodyear Leo Hendrik Baekeland Henry Ford Roy Plunkett Charles Goodyear Leo Hendrik Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1840s 1810s 1870s 1890s 1840s 1810s 1870s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gramophone? Michael Faraday Fahrenheit Sir Alexander Graham Bell Thomas Alva Edison Michael Faraday Fahrenheit Sir Alexander Graham Bell Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions Who was the first American female to patent her invention, a method of weaving straw with silk? Mary Kies Amanda Jones Margaret Knight Marjorie Joyner Mary Kies Amanda Jones Margaret Knight Marjorie Joyner ANSWER DOWNLOAD EXAMIANS APP
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