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Priority to FI942670ApriorityCriticalpatent/FI96497C/sv
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Publication of FI942670ApublicationCriticalpatent/FI942670A/sv
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Publication of FI96497BpublicationCriticalpatent/FI96497B/sv
Publication of FI96497CpublicationCriticalpatent/FI96497C/sv