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公开(公告)号:US3129679A
公开(公告)日:1964-04-21
申请号:US7793160
申请日:1960-12-23
Applicant: IBM
Inventor: GERTH HARRY L , JUDGE ROBERT L
公开(公告)号:US3129679A
公开(公告)日:1964-04-21
申请号:US7793160
申请日:1960-12-23
Applicant: IBM
Inventor: GERTH HARRY L , JUDGE ROBERT L