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公开(公告)号：US3067121A
公开(公告)日：1962-12-04
申请号：US84653759
申请日：1959-10-15
Applicant: ASEA AB
Inventor： OLLE LINDSTROM , SVEN HEDMAN
CPC classification number: G21C1/30 , G21C1/24 , G21Y2002/201 , G21Y2004/10 , Y02E30/40
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