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Application filed by Urho Aukusti HalonenfiledCriticalUrho Aukusti Halonen
Priority to FI834300ApriorityCriticalpatent/FI834300A/fi
Publication of FI834300A0publicationCriticalpatent/FI834300A0/fi
Publication of FI834300ApublicationCriticalpatent/FI834300A/fi