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
Priority claimed from FI884413Aexternal-prioritypatent/FI884413A/fi
Priority claimed from FI885795Aexternal-prioritypatent/FI885795A/fi
Priority claimed from PCT/FI1989/000179external-prioritypatent/WO1990003105A1/en
Application filed by Erkki Olavi RaipiafiledCriticalErkki Olavi Raipia
Priority to FI911057ApriorityCriticalpatent/FI911057A0/fi
Publication of FI911057A0publicationCriticalpatent/FI911057A0/fi