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公开(公告)号：US3499165A
公开(公告)日：1970-03-03
申请号：US3499165D
申请日：1967-06-22
Applicant: ASEA AB
Inventor： MADZAREVIC VJEKOSLAV , WITT HANS
CPC classification number: H02J3/36 , Y02E60/60 , Y10T307/707 , Y10T307/735
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