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Application filed by Jari Nokkala, Mauno NokkalafiledCriticalJari Nokkala
Priority to FI881856ApriorityCriticalpatent/FI881856A/fi
Publication of FI881856A0publicationCriticalpatent/FI881856A0/fi
Publication of FI881856ApublicationCriticalpatent/FI881856A/fi