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Application filed by Vilho Aatos KivistoefiledCriticalVilho Aatos Kivistoe
Priority to FI865271ApriorityCriticalpatent/FI77571C/en
Publication of FI865271A0publicationCriticalpatent/FI865271A0/en
Publication of FI865271ApublicationCriticalpatent/FI865271A/en
Application grantedgrantedCritical
Publication of FI77571BpublicationCriticalpatent/FI77571B/en
Publication of FI77571CpublicationCriticalpatent/FI77571C/en