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 Frank Otto SilvanderfiledCriticalFrank Otto Silvander
Priority to SE8503938ApriorityCriticalpatent/SE8503938D0/en
Publication of SE8503938D0publicationCriticalpatent/SE8503938D0/en