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Priority to FI924741ApriorityCriticalpatent/FI96365C/fi
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Publication of FI924741ApublicationCriticalpatent/FI924741A/fi
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Publication of FI96365BpublicationCriticalpatent/FI96365B/fi
Publication of FI96365CpublicationCriticalpatent/FI96365C/fi