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 Pentti Julius RiikonenfiledCriticalPentti Julius Riikonen
Priority to FI743262ApriorityCriticalpatent/FI50768C/fi
Priority to SE7512641Aprioritypatent/SE7512641L/xx
Application grantedgrantedCritical
Publication of FI50768BpublicationCriticalpatent/FI50768B/fi
Publication of FI50768CpublicationCriticalpatent/FI50768C/fi
