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 Henry Verner Nielsen, Hans Aksel Hindkjaer PedersenfiledCriticalHenry Verner Nielsen
Priority to DK285046ApriorityCriticalpatent/DK68488C/da
Application grantedgrantedCritical
Publication of DK68488CpublicationCriticalpatent/DK68488C/da