watch 01:24 The Loop (TV) Do you like this video? Frederick Eugene Ives (1856–1937) was an American inventor of the halftone printing process. History His stamp was seen on the wall at Springfield Stamp Museum. He introduced himself as an inventor of the halftone printing process. Apperances Episode – "The Girl Who Slept Too Little" Retrieved from "https://simpsons.fandom.com/wiki/Frederick_Ives?oldid=560621" Categories: Male characters Characters One-Time Characters American Characters Adults Black-Haired Characters Real world characters Characters voiced by Harry Shearer Deceased Real world characters Community content is available under CC-BY-SA unless otherwise noted.