Milton Hinkle Complete Biography, History, and Inventions

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Milton Hinkle was an inventor born in 1848 in Carrollton, Carroll County, Kentucky. Milton was popular for his invention of the simple adding device, a device patented on March 5, 1878.

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Milton invented the Simple Adding Machine in 1877.

What Did Milton Hinkle Invent?

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The patent model of the device survived to our time and is kept now in the collection of the National Museum of American History in Washington, D.C.

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How Did Milton Hinkle Invent His Adding Machine?

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Information about his death isn’t available for public knowledge. However, we’ll continue updating this article whenever relevant information is discovered.

When Did Milton Hinkle Die?

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