Patent

Patent:US313655 10.03.1885 Frederick W. Child : Tabular calculator
Patent:US316473 28.04.1885 Robert Henry Martin : Game counter or indicator
Patent:US322160 14.07.1885 Charpantier, Jules V. (P) : Calculator/Apparatus for facilitating the multiplication of numbers
Patent:US322161 14.07.1885 Charpantier, Jules V. (P) : Calculator/Apparatus for facilitating the multiplication of numbers
Patent:US323340 28.07.1885 Irving A. Kilmer : Register
Patent:US324078 11.08.1885 Bulloch : Mechanical Board Measure Calculator
Patent:US326824 22.09.1885 Wilcox, Reuben F. (P) : Adding machine
Patent:US327761 06.10.1885 Bradt, Charles M. (P) : Calculating device
Patent:US329421 27.10.1885 Weiss, Charles W. (P) und Kruse, Charles (P) : Adding device for check machines
Patent:US331264 24.11.1885 Argyle W. Tucker William T. Stewart : Calculating device
Patent:US331345 01.12.1885 Totten, Charles : Linear or other Scale
Patent:US351487 14.12.1885 Bone, Frank A. : Adding-machine
Patent:US532241 08.01.1885 R. E. McCleilland : Computing Machine

Rechnerlexikon