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公开(公告)号：US3323202A
公开(公告)日：1967-06-06
申请号：US36858164
申请日：1964-05-19
Applicant: GEN DYNAMICS CORP
Inventor： BROWER DAVID F , ALLEN HOMER A , WINTER MAHLON A
CPC classification number: B23P19/033 , B21D26/14 , D03D47/00 , D03D2700/1472 , Y10T29/49803 , Y10T29/4981 , Y10T29/49822 , Y10T29/53 , Y10T29/5383
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