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 FI873577Aexternal-prioritypatent/FI82820C/fi
Application filed by Ahlstroem OyfiledCriticalAhlstroem Oy
Publication of NO900717D0publicationCriticalpatent/NO900717D0/no
Publication of NO900717LpublicationCriticalpatent/NO900717L/no