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.)
Publication of DK143301ApublicationCriticalpatent/DK143301A/da
Priority claimed from FI851835Aexternal-prioritypatent/FI75658B/fi
Priority claimed from PCT/FI1986/000126external-prioritypatent/WO1988003244A1/en