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Application filed by Tr Huolto Om Arvo KovanenfiledCriticalTr Huolto Om Arvo Kovanen
Priority to FI814012ApriorityCriticalpatent/FI64489C/fi
Publication of FI814012LpublicationCriticalpatent/FI814012L/fi
Application grantedgrantedCritical
Publication of FI64489BpublicationCriticalpatent/FI64489B/fi
Publication of FI64489CpublicationCriticalpatent/FI64489C/fi