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公开(公告)号：US2963780A
公开(公告)日：1960-12-13
申请号：US65770257
申请日：1957-05-08
Applicant: ALUMINUM CO OF AMERICA
Inventor： LYLE JR JOHN P , TOWNER RAYMOND J
IPC: C22C1/04
CPC classification number: C22C1/0416
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公开(公告)号：US2809891A
公开(公告)日：1957-10-15
申请号：US46190454
申请日：1954-10-12
Applicant: ALUMINUM CO OF AMERICA
Inventor： ENNOR WILLIAM T , LYLE JR JOHN P
IPC: C22C1/04
CPC classification number: C22C1/0416
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