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 Rolf Selim EkholmfiledCriticalRolf Selim Ekholm
Priority to FI1510/74ApriorityCriticalpatent/FI151074A7/fi
Publication of FI151074A7publicationCriticalpatent/FI151074A7/fi