Method of and apparatus for recording and registering results of calculating operations, e.g. the determination and carrying forward of balances in calculating machines
GB451121A
Improvements in and relating to printing calculating machines, adding machines, cashregisters or the like
GB420721A
Improvements in and relating to typewriting-calculating machines
GB379811A
Improvements in and relating to calculating machines
GB367804A
Improvements in and relating to paper-feeding mechanism for typewriter machines, typewriter-calculating and like machines
GB364210A
Improvements in and relating to typewriter calculating machines
GB362500A
Improvements in and relating to typewriting machines, typewriting-calculating and like machines
GB361017A
Improvements in and relating to typewriters, calculating type machines, high speed telegraph machines, type-printing telegraphs, and the like
