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 Olof BeckmanfiledCriticalOlof Beckman
Priority to SE8500020ApriorityCriticalpatent/SE8500020D0/sv
Publication of SE8500020D0publicationCriticalpatent/SE8500020D0/sv