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公开(公告)号：US2335945A
公开(公告)日：1943-12-07
申请号：US32962940
申请日：1940-04-15
Applicant: IBM
Inventor： KEOUGH EDWARD J
CPC classification number: G06K5/00
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公开(公告)号：US2355389A
公开(公告)日：1944-08-08
申请号：US47003842
申请日：1942-12-24
Applicant: IBM
Inventor： MILLS ALBERT W , RABENDA EDWARD J , FURMAN FRANK J , KEOUGH EDWARD J
CPC classification number: G05B19/237
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