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Xerography was invented in the late 1930s by an American patent lawyer named Chester Carlson. At first, engineers considered the idea useless and several years passed before the potential of the invention was appreciated by industry. During those years, IBM, Kodak, General Electric and RCA were among the companies that turned Carlson away. The Battelle Memorial Institute, a nonprofit organization, invested in Carlson's research and eventually signed a licensing agreement with a company called Haloid. Battelle and Haloid collaborated in research and demonstrated the technique in 1948. Haloid subsequently became Xerox.


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