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公开(公告)号：CA879372A
公开(公告)日：1971-08-24
申请号：CA879372D
Applicant: IBM
Inventor： YOUNT WILLIAM R , KLEIN WALTER F , GARDNER CHARLES L JR
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公开(公告)号：CA785170A
公开(公告)日：1968-05-14
申请号：CA785170D
Applicant: IBM
Inventor： KLEIN WALTER F , HOSKINS THOMAS A
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