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Priority claimed from FI901535Aexternal-prioritypatent/FI901535A/fi
Application filed by Haukka Jarmo, Kauko Antero HaukkafiledCriticalHaukka Jarmo
Priority to FI910989ApriorityCriticalpatent/FI87819B/fi
Publication of FI910989A0publicationCriticalpatent/FI910989A0/fi
Publication of FI910989ApublicationCriticalpatent/FI910989A/fi
Application grantedgrantedCritical
Publication of FI87819BpublicationCriticalpatent/FI87819B/fi