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Priority to FI972818ApriorityCriticalpatent/FI103562B/fi
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Publication of FI972818ApublicationCriticalpatent/FI972818A/fi
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Publication of FI103562B1publicationCriticalpatent/FI103562B1/fi
Publication of FI103562BpublicationCriticalpatent/FI103562B/fi