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Application filed by Otto ArolafiledCriticalOtto Arola
Priority to FI752753ApriorityCriticalpatent/FI52380C/fi
Application grantedgrantedCritical
Publication of FI52380BpublicationCriticalpatent/FI52380B/fi
Publication of FI52380CpublicationCriticalpatent/FI52380C/fi