Amos Mendenhall – Complete Biography, History, and Inventions

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Amos Mendenhall was an American inventor that was recognized for attaining five US patents. He left a stamp on American history after he patented a practical calculator (US patent 67786) in 1867.

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Early Life

[{"selector":"#anim-99723904-0184-4be7-b084-4b068d08e5fd [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(25%, 16.04447158433689%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-4bdcd994-b9ee-4eae-a1b4-fbebf89eab6c","keyframes":[{"transform":"rotate(-540deg) scale(0.1)","opacity":0},{"transform":"none","opacity":1}],"delay":0,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both","iterations":1}] Amos Cowgill Mendenhall was born on November 16, 1828, in Clinton County, Ohio, to Hiram Mendenhall and Martha Ann Hale. Blue Rings Learn more

Career

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What Did Amos Mendenhall Invent?

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Other Works

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