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Priority to FI972977ApriorityCriticalpatent/FI103096B1/sv
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Publication of FI972977ApublicationCriticalpatent/FI972977A/sv
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Publication of FI103096BpublicationCriticalpatent/FI103096B/sv
Publication of FI103096B1publicationCriticalpatent/FI103096B1/sv