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Application filed by Tapani Tirkkonen OyfiledCriticalTapani Tirkkonen Oy
Priority to FI973900ApriorityCriticalpatent/FI973900A/fi
Publication of FI973900A0publicationCriticalpatent/FI973900A0/fi
Publication of FI973900ApublicationCriticalpatent/FI973900A/fi