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 Alpo Sakarias LehtinenfiledCriticalAlpo Sakarias Lehtinen
Priority to FI218071ApriorityCriticalpatent/FI50278C/fi
Application grantedgrantedCritical
Publication of FI50278BpublicationCriticalpatent/FI50278B/fi
Publication of FI50278CpublicationCriticalpatent/FI50278C/fi