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Priority claimed from FI854759Aexternal-prioritypatent/FI854759A0/en
Application filed by Ahlstroem OyfiledCriticalAhlstroem Oy
Priority to FI862724ApriorityCriticalpatent/FI77788C/en
Publication of FI862724A0publicationCriticalpatent/FI862724A0/en
Publication of FI862724ApublicationCriticalpatent/FI862724A/en
Publication of FI77788BpublicationCriticalpatent/FI77788B/en
Application grantedgrantedCritical
Publication of FI77788CpublicationCriticalpatent/FI77788C/en