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公开(公告)号:US2861258A
公开(公告)日:1958-11-18
申请号:US45928254
申请日:1954-09-30
Applicant: IBM
Inventor: WALSH JAMES L , LOGUE JOSEPH C , MARTIN ROBERT L
公开(公告)号:US2861258A
公开(公告)日:1958-11-18
申请号:US45928254
申请日:1954-09-30
Applicant: IBM
Inventor: WALSH JAMES L , LOGUE JOSEPH C , MARTIN ROBERT L