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Application filed by Antti Johannes NiemifiledCriticalAntti Johannes Niemi
Priority to FI751511ApriorityCriticalpatent/FI53760C/fi
Publication of FI751511ApublicationCriticalpatent/FI751511A/fi
Publication of FI53760BpublicationCriticalpatent/FI53760B/fi
Application grantedgrantedCritical
Publication of FI53760CpublicationCriticalpatent/FI53760C/fi