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公开(公告)号：US2426260A
公开(公告)日：1947-08-26
申请号：US51706944
申请日：1944-01-05
Applicant: KAISER FLEETWINGS INC
Inventor： COURTNEY WILBUR E
IPC: B21D5/02
CPC classification number: B21D5/02
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