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 Arne S Lindgren, R G Henry AbergfiledCriticalArne S Lindgren
Priority to SE8205242ApriorityCriticalpatent/SE8205242D0/sv
Publication of SE8205242D0publicationCriticalpatent/SE8205242D0/sv