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公开(公告)号：US2592432A
公开(公告)日：1952-04-08
申请号：US11225849
申请日：1949-08-25
Applicant: GLENN L MARTIN CO
Inventor： KLINE PAUL C , CROOK HARRY P , CUTSEM ALBERT T VAN
IPC: B23B47/28
CPC classification number: B23B47/28 , Y10T408/557 , Y10T408/558 , Y10T408/5653
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