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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 100 Famous Inventions and Greatest Ideas of All Time
just about anything else you can think of. Throughout history, human civilizations have witnessed engineering marvels from time to time that help improve the quality of life and, in some cases, are overwhelmingly
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Top 100 Famous Female Inventors in History & Modern Women Inventors
the zigzag stitch. Blanchard also invented a pencil sharpener, a surgical needle, a corset cord fastener, and upgraded elastic goring for shoes. She was also described in 1891 as an entrepreneur who owned