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Priority claimed from FI972173Aexternal-prioritypatent/FI112028B/fi
Application filed by Polar Electro OyfiledCriticalPolar Electro Oy
Publication of HK1060695A1publicationCriticalpatent/HK1060695A1/zh
Publication of HK1060965ApublicationCriticalpatent/HK1060965A/zh
Publication of HK1060965BpublicationCriticalpatent/HK1060965B/zh