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公开(公告)号:CA905010A
公开(公告)日:1972-07-11
申请号:CA905010D
Applicant: IBM
Inventor: RISEMAN JACOB , CHANCE DUDLEY A , PERRI JOHN A , IM SAMUEL S
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公开(公告)号:CA850850A
公开(公告)日:1970-09-01
申请号:CA850850D
Applicant: IBM
Inventor: RISEMAN JACOB , PERRI JOHN A
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