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Priority to FI943743ApriorityCriticalpatent/FI96986C/sv
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Publication of FI943743ApublicationCriticalpatent/FI943743A/sv
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Publication of FI96986BpublicationCriticalpatent/FI96986B/sv
Publication of FI96986CpublicationCriticalpatent/FI96986C/sv