Tabulating machine
    44.
    发明授权
    Tabulating machine 失效
    制表机

    公开(公告)号:US2126621A

    公开(公告)日:1938-08-09

    申请号:US70476833

    申请日:1933-12-30

    Applicant: IBM

    Inventor: DALY GEORGE F

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