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Priority to FI930420ApriorityCriticalpatent/FI96366C/fi
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Publication of FI930420ApublicationCriticalpatent/FI930420A/fi
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Publication of FI96366BpublicationCriticalpatent/FI96366B/fi
Publication of FI96366CpublicationCriticalpatent/FI96366C/fi