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 Esa Kalervo RantanenfiledCriticalEsa Kalervo Rantanen
Priority to FI960270UpriorityCriticalpatent/FI2820U1/fi
Publication of FIU960270U0publicationCriticalpatent/FIU960270U0/fi
Application grantedgrantedCritical
Publication of FI2820U1publicationCriticalpatent/FI2820U1/fi