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 Jorma Kalevi PulkkinenfiledCriticalJorma Kalevi Pulkkinen
Priority to FI921152ApriorityCriticalpatent/FI921152A0/fi
Publication of FI921152A0publicationCriticalpatent/FI921152A0/fi