What American patent attorney visited John Shaw Crout in 1944?
Chester Carlson Chester Floyd Carlson (February 8, 1906 – September 19, 1968) was an American physicist, inventor, and patent attorney born in Seattle, Washington.
Charles Albert Crampton Charles Albert Crampton, M.D. (1858–1915) was an American chemist, born at Davenport, Iowa. He was educated at Purdue (A.C.) and the University of Michigan (Ph.C.). He served as assistant chemist in the United States Department of Agriculture, and became chief chemist of the Internal Revenue Bureau in 1893.