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公开(公告)号：US3339268A
公开(公告)日：1967-09-05
申请号：US36984264
申请日：1964-05-25
Applicant: IBM
Inventor： ADAMS JOHN M , WHITE JR JAMES A
CPC classification number: B21D22/00 , B21D5/029 , B21D53/74 , G05B19/188 , Y10T29/49895 , Y10T29/49901
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