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公开(公告)号：US3410472A
公开(公告)日：1968-11-12
申请号：US61429367
申请日：1967-02-06
Applicant: AVCO CORP
Inventor： WELLER CARROLL E , DIESELBERG RONALD L
CPC classification number: B23K3/02 , B23K3/0369
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