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 Jouko Kalevi KettunenfiledCriticalJouko Kalevi Kettunen
Priority to FI930421ApriorityCriticalpatent/FI930421A/fi
Publication of FI930421A0publicationCriticalpatent/FI930421A0/fi
Publication of FI930421ApublicationCriticalpatent/FI930421A/fi