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Priority to FI955928ApriorityCriticalpatent/FI101899B1/en
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Publication of FI955928ApublicationCriticalpatent/FI955928A/en
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Publication of FI101899BpublicationCriticalpatent/FI101899B/en
Publication of FI101899B1publicationCriticalpatent/FI101899B1/en