Chester Floyd Carlson (February 8, 1906 - September 19, 1968) was an American physicist, inventor, and patent attorney born in Seattle, Washington. He invented the process of instant copying which he called electrophotography, and which was subsequently named xerography and commercialized by the Haloid Corporation (Xerox). A hard worker, he persisted in his quest, meeting disappointment and failure for many years before finally succeeding. Wikipedia
The definitive Wikipedia entry for Chester Carlson. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Chester_Carlson
But few realize the significant contribution that one man, Chester Carlson, made on our lives as document creators. www.creativepro.com/story/feature/23030.html
The use of Neo-Cyclostyle machine and other mimeo graphic duplicators declined in use after Chester Carlsons introduction of xerographic duplicating in the early 1960s. teched.vt.edu/gcc/HTML/PrintingsPast/BeforeCopies.html