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Application filed by Keijo VornanenfiledCriticalKeijo Vornanen
Priority to FI874380ApriorityCriticalpatent/FI78635C/sv
Publication of FI874380A0publicationCriticalpatent/FI874380A0/fi
Publication of FI874380ApublicationCriticalpatent/FI874380A/fi
Publication of FI78635BpublicationCriticalpatent/FI78635B/fi
Application grantedgrantedCritical
Publication of FI78635CpublicationCriticalpatent/FI78635C/sv