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Application filed by Heikki HalonenfiledCriticalHeikki Halonen
Priority to FI863205ApriorityCriticalpatent/FI76154C/sv
Publication of FI863205A0publicationCriticalpatent/FI863205A0/fi
Publication of FI863205ApublicationCriticalpatent/FI863205A/fi
Application grantedgrantedCritical
Publication of FI76154BpublicationCriticalpatent/FI76154B/fi
Publication of FI76154CpublicationCriticalpatent/FI76154C/sv