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Top 101 Black Inventors & African American's Best Invention Ideas that Changed The World
his knowledge of prototype design engineering, to trap sewer water and prevent it from flowing back into homes. He was awarded a patent for his prototype design engineering invention in 1890, and his device
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Top 101 Female Inventions that Changed the World & Women’s Innovation History
stronger out of the water than steel and up to 20 times stronger underwater; it was also resistant to corrosion and heat. 14. Call Center System The world can thank Erna Schneider Hoover for giving some sense
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Top 11 Brilliant Inventions Discovered by Accident
built his pacemaker. At the University of Buffalo, serving as an assistant professor in electrical engineering, he was working on an electric heart-rhythm recording device in 1956 for the Chronic Disease Research