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Application filed by Jorma OernfiledCriticalJorma Oern
Priority to FI864844ApriorityCriticalpatent/FI87447C/fi
Publication of FI864844A0publicationCriticalpatent/FI864844A0/fi
Publication of FI864844ApublicationCriticalpatent/FI864844A/fi
Application grantedgrantedCritical
Publication of FI87447BpublicationCriticalpatent/FI87447B/fi
Publication of FI87447CpublicationCriticalpatent/FI87447C/fi