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公开(公告)号：US3093567A
公开(公告)日：1963-06-11
申请号：US80295859
申请日：1959-03-30
Applicant: GEN MOTORS CORP
Inventor： JABLONSKI FRANCIS E , LEFFERT CHARLES B
CPC classification number: G21D7/04 , G21C3/40 , Y02E30/38 , Y10S376/901
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