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Application filed by Roger NygrenfiledCriticalRoger Nygren
Priority to FI840133ApriorityCriticalpatent/FI68587C/fi
Publication of FI840133A0publicationCriticalpatent/FI840133A0/fi
Application grantedgrantedCritical
Publication of FI68587BpublicationCriticalpatent/FI68587B/fi
Publication of FI68587CpublicationCriticalpatent/FI68587C/fi