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04/11/1880 The first cash register is patented

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On This Day: Ohio Natives Patent Cash Register

An early mechanical cash register was invented by James Ritty and John Birch following the American Civil War. The Ritty Model I was invented in 1879 after seeing a tool that counted the revolutions of the propeller on a steamship. With the help of James' brother John Ritty, they patented it in 1883.