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
Priority claimed from SE8503830Aexternal-prioritypatent/SE453822B/en
Application filed by Plm AbfiledCriticalPlm Ab
Publication of NO871419D0publicationCriticalpatent/NO871419D0/en
Publication of NO168759BpublicationCriticalpatent/NO168759B/en
Publication of NO168759CpublicationCriticalpatent/NO168759C/en