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Priority to FI955744ApriorityCriticalpatent/FI103921B/fi
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Publication of FI955744ApublicationCriticalpatent/FI955744A/fi
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Publication of FI103921B1publicationCriticalpatent/FI103921B1/fi
Publication of FI103921BpublicationCriticalpatent/FI103921B/fi