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 Erik HelstroemfiledCriticalErik Helstroem
Priority to NO874438ApriorityCriticalpatent/NO163273C/no
Publication of NO874438D0publicationCriticalpatent/NO874438D0/no
Publication of NO874438LpublicationCriticalpatent/NO874438L/no
Publication of NO163273BpublicationCriticalpatent/NO163273B/no
Publication of NO163273CpublicationCriticalpatent/NO163273C/no