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101 Inventions That Changed the World in the Last 100 Years
to make and use an OLED-fitted device back in 1987. The screen was an invention of two employees, Steven Van Slyke and Ching W. Tang. One thing that made OLED popular was its ability to achieve higher contrast
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100 Famous Inventors and Their Best Invention Ideas
and actually one of the most affordable in the world. 40. Hiram Maxim The first patent that Hiram Stevens Maxim obtained was for a hair-curling iron in 1866. However, he earned considerable prominence in