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公开(公告)号：CA470717A
公开(公告)日：1951-01-09
申请号：CA470717D
Applicant: IBM
Inventor： RUBIDGE DAVID W , GREENE JAMES B , HOOD JAMES DEK , MANNING CLARENCE R
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公开(公告)号：CA443078A
公开(公告)日：1947-07-22
申请号：CA443078D
Applicant: IBM
Inventor： GREENE JAMES B , RUBIDGE DAVID W , HOOD JAMES DEK , MANNING CLARENCE R
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