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Application filed by Jaakko Ilmari VaissifiledCriticalJaakko Ilmari Vaissi
Priority to FI733476ApriorityCriticalpatent/FI52652C/fi
Publication of FI347673A7publicationCriticalpatent/FI347673A7/fi
Application grantedgrantedCritical
Publication of FI52652BpublicationCriticalpatent/FI52652B/fi
Publication of FI52652CpublicationCriticalpatent/FI52652C/fi