Burroughs Adding Machine




of Nottingham, and Glasgow
1882 William Seward Burroughs conceived the idea of an adding machines[1]
1898 Company founded in USA
1905 Burroughs Adding Machine Company was incorporated in Michigan
1909 Private company, Burroughs Adding Machines Ltd, was incorporated in Britain, a wholly-owned subsidiary of the US company[2]
1910 Exhibited 86 types and sizes of adding machine at Olympia[3]
1956 Rank Precision Industries manufactured microfilm-based recording system for Burroughs Adding Machine Company[4]
1961 Manufacturers of adding, calculating, bookeeping and other office machines. [5]
1961 Name changed to Burroughs Machines Ltd
1974 Introduced C7200 series of calculators.[6]
1986 Merged with Sperry Rand to form Unisys Corporation.