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 Markku Unto Olavi NieminenfiledCriticalMarkku Unto Olavi Nieminen
Priority to FI830306ApriorityCriticalpatent/FI67990C/fi
Publication of FI830306A0publicationCriticalpatent/FI830306A0/fi
Publication of FI830306LpublicationCriticalpatent/FI830306L/fi
Publication of FI67990BpublicationCriticalpatent/FI67990B/fi
Application grantedgrantedCritical
Publication of FI67990CpublicationCriticalpatent/FI67990C/fi