Marking device
    1.
    发明授权
    Marking device 失效
    标记装置

    公开(公告)号:US2279073A

    公开(公告)日:1942-04-07

    申请号:US39275841

    申请日:1941-05-09

    Applicant: IBM

    Inventor: STAUSS KARL R

    CPC classification number: B44B3/04

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