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Priority to FI946109ApriorityCriticalpatent/FI102050B1/en
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Publication of FI946109ApublicationCriticalpatent/FI946109A/en
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Publication of FI102050BpublicationCriticalpatent/FI102050B/en
Publication of FI102050B1publicationCriticalpatent/FI102050B1/en