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Application filed by Viljo Juhana JaervenpaeaefiledCriticalViljo Juhana Jaervenpaeae
Priority to FI2280/74ApriorityCriticalpatent/FI54522C/fi
Publication of FI228074A7publicationCriticalpatent/FI228074A7/fi
Application grantedgrantedCritical
Publication of FI54522BpublicationCriticalpatent/FI54522B/fi
Publication of FI54522CpublicationCriticalpatent/FI54522C/fi