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 SE8505709Aexternal-prioritypatent/SE8505709D0/en
Application filed by Arnold WirfalkfiledCriticalArnold Wirfalk
Priority to SE8605185ApriorityCriticalpatent/SE8605185D0/en
Publication of SE8605185D0publicationCriticalpatent/SE8605185D0/en
Priority to SE8704812Aprioritypatent/SE8704812D0/en