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公开(公告)号:CA472154A
公开(公告)日:1951-03-13
申请号:CA472154D
Applicant: IBM
Inventor: JOHNSON REYNOLD B , GEIGER EDWARD F
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公开(公告)号:CA593060A
公开(公告)日:1960-02-23
申请号:CA593060D
Applicant: IBM
Inventor: JOHNSON REYNOLD B , WOLFF FRED G
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