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Priority to FI268871ApriorityCriticalpatent/FI47839C/fi
Priority to FI301372Aprioritypatent/FI48970C/fi
Publication of FI47839BpublicationCriticalpatent/FI47839B/fi
Application grantedgrantedCritical
Publication of FI47839CpublicationCriticalpatent/FI47839C/fi