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Priority claimed from FI973679Aexternal-prioritypatent/FI103759B/fi
Application filed by Polar Electro OyfiledCriticalPolar Electro Oy
Publication of HK1029033A1publicationCriticalpatent/HK1029033A1/zh
Publication of HK1029033BpublicationCriticalpatent/HK1029033B/zh