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 Alf Verner NystroemfiledCriticalAlf Verner Nystroem
Priority to DK304154ApriorityCriticalpatent/DK84347C/da
Application grantedgrantedCritical
Publication of DK84347CpublicationCriticalpatent/DK84347C/da