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Application filed by Casco AbfiledCriticalCasco Ab
Priority to FI898/74ApriorityCriticalpatent/FI59045C/fi
Publication of FI89874A7publicationCriticalpatent/FI89874A7/fi
Publication of FI59045BpublicationCriticalpatent/FI59045B/fi
Application grantedgrantedCritical
Publication of FI59045CpublicationCriticalpatent/FI59045C/fi