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Application filed by Pertti Telkki, Lauri TenhunenfiledCriticalPertti Telkki
Priority to FI934219ApriorityCriticalpatent/FI934219A/fi
Publication of FI934219A0publicationCriticalpatent/FI934219A0/fi
Publication of FI934219ApublicationCriticalpatent/FI934219A/fi