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公开(公告)号：US3506059A
公开(公告)日：1970-04-14
申请号：US3506059D
申请日：1968-11-21
Applicant: ALUMINUM CO OF AMERICA
Inventor： BURKART ALAN R , MUDGE JOHN H
IPC: B22D11/049 , B22D11/112 , B22D11/10
CPC classification number: B22D11/049 , B22D11/112
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公开(公告)号：US3477494A
公开(公告)日：1969-11-11
申请号：US3477494D
申请日：1966-09-01
Applicant: ALUMINUM CO OF AMERICA
Inventor： BURKART ALAN R , MUDGE JOHN H
IPC: B22D11/049 , B22D11/11 , B22D11/112 , B22D11/00 , B22D15/04
CPC classification number: B22D11/049 , B22D11/11 , B22D11/112
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