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Application filed by Teuvo OkkonenfiledCriticalTeuvo Okkonen
Priority to FI861581ApriorityCriticalpatent/FI78530C/fi
Publication of FI861581A0publicationCriticalpatent/FI861581A0/fi
Publication of FI861581ApublicationCriticalpatent/FI861581A/fi
Publication of FI78530BpublicationCriticalpatent/FI78530B/fi
Application grantedgrantedCritical
Publication of FI78530CpublicationCriticalpatent/FI78530C/fi