Monroe Calculators

Monroe Systems for Business is an American privately-owned corporation devoted to electric calculators, printers, and office accessories such as paper shredders to business clients. Originally known as the Monroe Calculating Machine Company, it was founded in 1912 by Jay Randolph Monroe as a maker of adding machines and calculators based on a machine designed by Frank Stephen Baldwin. It was later known as Monroe THE Calculator Company, and Monroe Division of Litton Industries.