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Priority to FI751811ApriorityCriticalpatent/FI52775C/fi
Priority to DK272276Aprioritypatent/DK272276A/da
Publication of FI751811A7publicationCriticalpatent/FI751811A7/fi
Publication of FI52775BpublicationCriticalpatent/FI52775B/fi
Application grantedgrantedCritical
Publication of FI52775CpublicationCriticalpatent/FI52775C/fi