Record sensing means
    3.
    发明授权
    Record sensing means 失效
    记录传感手段

    公开(公告)号:US2377783A

    公开(公告)日:1945-06-05

    申请号:US47216943

    申请日:1943-01-12

    Applicant: IBM

    Inventor: HOOD JAMES D

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