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公开(公告)号：US3463675A
公开(公告)日：1969-08-26
申请号：US3463675D
申请日：1966-12-30
Applicant: DAYTON MALLEABLE IRON CO THE
Inventor： HUNSAKER ORAL K , SHUE BRUCE R , DAVIS RALPH C
CPC classification number: C22C38/60
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