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.)
Publication of NL102569CpublicationCriticalpatent/NL102569C/xx
Priority claimed from US775758Aexternal-prioritypatent/US2930470A/en
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
B41J3/24—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for perforating or stencil cutting using special types or dies