Found 2 collections related to Inventors

Chester Floyd Carlson (1906-1968) was an American patent attorney who invented xerography in 1938. Collection consists of correspondence, technical papers, writings, personal and financial papers, photographs, ephemera, and printed matter. General correspondence reflects Carlson's philanthropic interests; technical correspondence, laboratory notebooks, patent files, and other papers relate to his invention of xerography and to its commercial development. Other papers include family correspondence, diaries for 1928 to 1968, financial papers, speeches and other writings, scrapbooks of printed ephemera related to xerography, and photographs of trips to the Soviet Union and India. Also, papers relating to parapsychology and to the economic development of Guyana, 1966-1968. less