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公开(公告)号：US2163590A
公开(公告)日：1939-06-27
申请号：US16301837
申请日：1937-09-09
Applicant: FLEETWINGS INC
Inventor： DE GANAHL CARL , LAVELLE THOMAS B
IPC: B23K11/06
CPC classification number: B23K11/061 , B23K2201/18
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