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公开(公告)号：US1894256A
公开(公告)日：1933-01-10
申请号：US53760831
申请日：1931-05-15
Applicant: FLEETWINGS INC
Inventor： DE GANAHL CARL , ROBINSON NATHANIEL O
IPC: B63B1/38
CPC classification number: B63B1/38 , B63B2001/387 , Y02T70/122
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