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公开(公告)号：US2455334A
公开(公告)日：1948-11-30
申请号：US57068044
申请日：1944-12-30
Applicant: GLENN L MARTIN CO
Inventor： HILL THOMAS C , SCHMIDT WILLIAM A
IPC: B64C25/44
CPC classification number: B64C25/44 , Y10T137/86268 , Y10T137/9138
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