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    • 5. 发明授权
    • Document holder
    • 文件夹
    • US06889951B1
    • 2005-05-10
    • US10768536
    • 2004-02-02
    • Michael Peter Shields
    • Michael Peter Shields
    • B42D17/00A47B19/00
    • B42D17/00
    • The present invention is a single or multiple sheet document holder with a base plate supporting three posts, each post having mounted at its top a cupola formed with an upwardly facing socket adapted to securely and easily rotatingly hold a metal ball. The document holder uses a support slot forming contact points for a paper sheet or sheets to be supported. The support slot receives one or more sheets for support via substantial lateral curvature up and down the page combined with substantial deviation from vertical support (the top of the sheets slant slightly back and away from the user).
    • 本发明是具有支撑三个柱的基板的单张或多张片材文件夹,每个柱在其顶部安装有形成有向上的插座的圆顶,其适于牢固且容易地旋转地保持金属球。 文件夹使用支撑槽形成用于支撑纸张或纸张的接触点。 支撑槽接收一个或多个用于支撑的片材,用于通过基本上横向弯曲的上部和下部的弯曲,同时与垂直支撑件(顶部的片材稍微向后倾斜并远离使用者)显着偏离。