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 Gosta OhrvallfiledCriticalGosta Ohrvall
Priority to SE8701490ApriorityCriticalpatent/SE8701490D0/sv
Publication of SE8701490D0publicationCriticalpatent/SE8701490D0/sv