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Application filed by Pentti SinkkilaefiledCriticalPentti Sinkkilae
Priority to FI880648ApriorityCriticalpatent/FI84198B/fi
Publication of FI880648A0publicationCriticalpatent/FI880648A0/fi
Publication of FI880648ApublicationCriticalpatent/FI880648A/fi
Application grantedgrantedCritical
Publication of FI84198BpublicationCriticalpatent/FI84198B/fi