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 Ahlstroem OyfiledCriticalAhlstroem Oy
Priority to FI865299ApriorityCriticalpatent/FI865299A0/fi
Publication of FI865299A0publicationCriticalpatent/FI865299A0/fi
Priority to FI872772Aprioritypatent/FI872772A/fi
Priority to PCT/FI1987/000172prioritypatent/WO1988004548A1/en
Priority to DK469188Aprioritypatent/DK469188D0/da
Priority to NO88883743Aprioritypatent/NO883743D0/no