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Application filed by Carl Axel EhrnroothfiledCriticalCarl Axel Ehrnrooth
Priority to FI902060ApriorityCriticalpatent/FI902060A/fi
Publication of FI902060A0publicationCriticalpatent/FI902060A0/fi
Priority to FI902811Aprioritypatent/FI87844C/fi
Priority to EP91303145Aprioritypatent/EP0454318A1/en
Priority to NO91911599Aprioritypatent/NO911599L/no
Publication of FI902060ApublicationCriticalpatent/FI902060A/fi