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公开(公告)号：US2805624A
公开(公告)日：1957-09-10
申请号：US27586852
申请日：1952-03-11
Applicant: OLIN MATHIESON
Inventor： HOLMES RAYMOND S , WORK LINCOLN T
CPC classification number: B22F1/0007 , C22C33/0207 , F42B12/74
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