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Application filed by Tauno Kleofas NiskanenfiledCriticalTauno Kleofas Niskanen
Priority to FI874802ApriorityCriticalpatent/FI84419C/fi
Publication of FI874802A0publicationCriticalpatent/FI874802A0/fi
Publication of FI874802LpublicationCriticalpatent/FI874802L/fi
Application grantedgrantedCritical
Publication of FI84419BpublicationCriticalpatent/FI84419B/fi
Publication of FI84419CpublicationCriticalpatent/FI84419C/fi