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公开(公告)号：US3497400A
公开(公告)日：1970-02-24
申请号：US3497400D
申请日：1967-09-14
Applicant: ALUMINUM CO OF AMERICA
Inventor： STOKES JOHN JOSEPH JR , CARGNEL ROBERT ALFONSO
IPC: B23K35/36
CPC classification number: B23K35/3603
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