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公开(公告)号：US3432387A
公开(公告)日：1969-03-11
申请号：US3432387D
申请日：1965-06-21
Applicant: ASEA AB
Inventor： JONSSON ERIK
CPC classification number: G21C7/16 , G21C7/12 , G21C7/20 , G21Y2002/50 , G21Y2004/305 , Y02E30/39
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