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Application filed by Jarl Fredrik SerlachiusfiledCriticalJarl Fredrik Serlachius
Priority to FI880169ApriorityCriticalpatent/FI77154C/fi
Publication of FI880169A0publicationCriticalpatent/FI880169A0/fi
Application grantedgrantedCritical
Publication of FI77154BpublicationCriticalpatent/FI77154B/fi
Publication of FI77154CpublicationCriticalpatent/FI77154C/fi