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公开(公告)号：US3288655A
公开(公告)日：1966-11-29
申请号：US33139563
申请日：1963-12-18
Applicant: LUBRIZOL CORP
Inventor： HARWELL EARNEST W , MASTIN THOMAS W
CPC classification number: C21D9/52 , C21D1/70 , C21D8/0236 , C21D8/0252 , C21D8/0273 , C21D8/0284 , C23C22/73 , Y10T29/49991
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