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Priority claimed from FI662523Aexternal-prioritypatent/FI52403C/fi
Application filed by Stoner Eugen MorrisonfiledCriticalStoner Eugen Morrison
Publication of FI761104ApublicationCriticalpatent/FI761104A/fi
Application grantedgrantedCritical
Publication of FI53497BpublicationCriticalpatent/FI53497B/fi
Publication of FI53497CpublicationCriticalpatent/FI53497C/fi