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 SE8802580Aexternal-prioritypatent/SE469279C/en
Application filed by Wikdahl Nils Anders LennartfiledCriticalWikdahl Nils Anders Lennart
Publication of NO910052D0publicationCriticalpatent/NO910052D0/en
Publication of NO910052LpublicationCriticalpatent/NO910052L/en