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Application filed by Knut Ingvald OesterbergfiledCriticalKnut Ingvald Oesterberg
Priority to FI834078ApriorityCriticalpatent/FI68419C/fi
Publication of FI834078A0publicationCriticalpatent/FI834078A0/fi
Publication of FI834078ApublicationCriticalpatent/FI834078A/fi
Publication of FI68419BpublicationCriticalpatent/FI68419B/fi
Application grantedgrantedCritical
Publication of FI68419CpublicationCriticalpatent/FI68419C/fi