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 Bertil SwahnfiledCriticalBertil Swahn
Priority to SE8803229ApriorityCriticalpatent/SE8803229D0/sv
Publication of SE8803229D0publicationCriticalpatent/SE8803229D0/sv