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公开(公告)号:US3432845A
公开(公告)日:1969-03-11
申请号:US3432845D
申请日:1966-03-08
Applicant: IBM
Inventor: DOUGLAS GAVIN L , SIMPSON JACK W SR
CPC classification number: G09G1/18 , G06F3/1407
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公开(公告)号:CA845328A
公开(公告)日:1970-06-23
申请号:CA845328D
Applicant: IBM
Inventor: DOUGLAS GAVIN L , SIMPSON JACK W SR
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