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Priority to FI921375ApriorityCriticalpatent/FI92153C/sv
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Publication of FI921375ApublicationCriticalpatent/FI921375A/sv
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Publication of FI92153BpublicationCriticalpatent/FI92153B/sv
Publication of FI92153CpublicationCriticalpatent/FI92153C/sv