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公开(公告)号:US3244139A
公开(公告)日:1966-04-05
申请号:US31216463
申请日:1963-09-27
Applicant: IBM
Inventor: BROWN ROBERT J , DERR DONALD B , GUT FREDERICK C
CPC classification number: B41K3/12 , B21C51/005
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公开(公告)号:US3141403A
公开(公告)日:1964-07-21
申请号:US28346263
申请日:1963-05-27
Applicant: IBM
Inventor: BROWN ROBERT J , DERR DONALD B , GUT FREDERICK C
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公开(公告)号:CA698785A
公开(公告)日:1964-11-24
申请号:CA698785D
Applicant: IBM
Inventor: GUT FREDERICK C , BROWN ROBERT J , DERR DONALD B
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