Patent
Patentdatenbank USA 1883

- Patent:US269962 02.01.1883 Sawyer, William A. Arthur B. Clafin : Machine for measuring the area of surfaces
- Patent:US271363 30.01.1883 Ritty, James (P) und Birch, John (P) NCR (P) : Cash Register and Indicator
- Patent:US272626 20.02.1883 Beatley, William Henry (P) : Adding Machine
- Patent:US280772 03.07.1883 Sylvester J. Tucker Edmund P. Kelly : Percentage calculator
- Patent:US283331 14.08.1883 James S. Duret : Calculating device
- Patent:US284576 04.09.1883 Rowland, Charles (P) : Calculating device
- Patent:US287192 23.10.1883 Tallman, Ira E. (P) : Calculating machine
- Patent:US288976 27.11.1883 Cyrus Chambers, Jr. : Engine-register
- Patent:US300809 06.10.1883 Smalstig, William C. : Adding machine
![[Hauptseite]](/upload/wiki.png)
Hauptseite