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Inventors Helping Inventors

Feb 13, 2023

Alan interviews Mark Turnbaugh.

In his youth, Mark Turnbaugh loved tinkering. But he found that knife sharpening with his dad's stone was confounding.

Later, as an engineer, he invented a better knife sharpener - Sharpworx, that even novices could use. Today Mark makes and sells his Sharpworx sharpeners all over the U.S.

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