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公开(公告)号:US2615333A
公开(公告)日:1952-10-28
申请号:US16318250
申请日:1950-05-20
Applicant: IBM
Inventor: GARDINOR ELLIOTT W , CHENEY RAYMOND E , BLEUER LORIN T
CPC classification number: G06K5/00
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公开(公告)号:US2684746A
公开(公告)日:1954-07-27
申请号:US23020651
申请日:1951-06-06
Applicant: IBM
Inventor: BAKELAAR JOHN H , OLDENBOOM DERK J , BLEUER LORIN T
CPC classification number: B65H20/22
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