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 Talemaskinefabrikant L StevensfiledCriticalTalemaskinefabrikant L Stevens
Application grantedgrantedCritical
Publication of DK31256CpublicationCriticalpatent/DK31256C/da