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Priority claimed from FI662523Aexternal-prioritypatent/FI52403C/fi
Application filed by Stoner Eugen MorrisonfiledCriticalStoner Eugen Morrison
Publication of FI761105A7publicationCriticalpatent/FI761105A7/fi
Application grantedgrantedCritical
Publication of FI53498BpublicationCriticalpatent/FI53498B/fi
Publication of FI53498CpublicationCriticalpatent/FI53498C/fi