Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Cottier, Rodolphe Enriquez, Henri GuyefiledCriticalAlfred Cottier
Publication of CH80538ApublicationCriticalpatent/CH80538A/en
Improvements made to allow simultaneous driving of several superimposed sheets, in particular for accounting machines, typewriters, calculators, statistics, etc.