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Application filed by Viljo Juhana JaervenpaeaefiledCriticalViljo Juhana Jaervenpaeae
Priority to FI36974ApriorityCriticalpatent/FI51150C/fi
Publication of FI740369A0publicationCriticalpatent/FI740369A0/fi
Publication of FI51150BpublicationCriticalpatent/FI51150B/fi
Application grantedgrantedCritical
Publication of FI51150CpublicationCriticalpatent/FI51150C/fi