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公开(公告)号:CH510314A
公开(公告)日:1971-07-15
申请号:CH995670
申请日:1970-07-01
Applicant: IBM
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公开(公告)号:CH477070A
公开(公告)日:1969-08-15
申请号:CH1470168
申请日:1968-10-01
Applicant: IBM
Inventor: ALAN EDWARD GARDNER PETER , MICHAEL HENRY HALLETT , PETER JAMES TITMAN
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