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Application filed by Pentti VainionpaeaefiledCriticalPentti Vainionpaeae
Priority to FI831854ApriorityCriticalpatent/FI86520C/fi
Publication of FI831854A0publicationCriticalpatent/FI831854A0/fi
Publication of FI831854LpublicationCriticalpatent/FI831854L/fi
Application grantedgrantedCritical
Publication of FI86520BpublicationCriticalpatent/FI86520B/fi
Publication of FI86520CpublicationCriticalpatent/FI86520C/fi