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Application filed by Martti KorpelafiledCriticalMartti Korpela
Priority to FI980111ApriorityCriticalpatent/FI107438B/fi
Publication of FI980111A0publicationCriticalpatent/FI980111A0/fi
Publication of FI980111ApublicationCriticalpatent/FI980111A/fi
Application grantedgrantedCritical
Publication of FI107438BpublicationCriticalpatent/FI107438B/fi