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Application filed by Matti JanhunenfiledCriticalMatti Janhunen
Priority to FI912179ApriorityCriticalpatent/FI88530C/fi
Publication of FI912179A0publicationCriticalpatent/FI912179A0/fi
Publication of FI912179ApublicationCriticalpatent/FI912179A/fi
Application grantedgrantedCritical
Publication of FI88530BpublicationCriticalpatent/FI88530B/fi
Publication of FI88530CpublicationCriticalpatent/FI88530C/fi