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Application filed by Hannu Ilmari SarvannefiledCriticalHannu Ilmari Sarvanne
Priority to FI792723ApriorityCriticalpatent/FI60508C/fi
Publication of FI792723ApublicationCriticalpatent/FI792723A/fi
Application grantedgrantedCritical
Publication of FI60508BpublicationCriticalpatent/FI60508B/fi
Publication of FI60508CpublicationCriticalpatent/FI60508C/fi