Inventions Who invented Bifocal Lens? Benjamin Franklin Rudolf Diesel Thomas Alva Edison Alfred B. Nobel Benjamin Franklin Rudolf Diesel Thomas Alva Edison Alfred B. Nobel ANSWER DOWNLOAD EXAMIANS APP
Inventions When was barb wire patented? 1900 1874 1840 1895 1900 1874 1840 1895 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1980s 1960s 1970s 1950s 1980s 1960s 1970s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent? Banjo Clarinet Oboe Harmonium Banjo Clarinet Oboe Harmonium ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Visa Discover MasterCharge Diner's Club Visa Discover MasterCharge Diner's Club ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the phonograph? Thomas Edison Jules Levy John Kruesi Alexander Graham Bell Thomas Edison Jules Levy John Kruesi Alexander Graham Bell ANSWER DOWNLOAD EXAMIANS APP
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