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Application filed by Vilho DunderfiledCriticalVilho Dunder
Priority to FI25071ApriorityCriticalpatent/FI45530C/fi
Application grantedgrantedCritical
Publication of FI45530BpublicationCriticalpatent/FI45530B/fi
Publication of FI45530CpublicationCriticalpatent/FI45530C/fi