DIÁRIO DE BORDO: Computadores avant la lettre (1)

Recording Computing-Machine - Full

U.S. Patent number: 465,255; Filed: Nov. 11, 1890; Issued: Dec 15, 1891; Inventor: Dorr E. Felt
«In 1891, Dorr Felt invented a device designed to improve upon the existing "recording machines which compute." Felt described the improvements in his device as follows: "The leading object of my invention is to provide an improved recording-machine which will record the answer or result indicated by the numeral-wheels by pressing a knob instead of striking the amount of the answer on the keys.»
[Fonte: TechRepublic]