发明名称 Binder assembly with randomly removable leaves
摘要 A binder assembly comprises a binder and leaves which are randomly removable therefrom. The leaves may be removed only by a sidewise shifting movement. Blocking portions are movably mounted on the device selectively to permit or prohibit sidewise movement of the leaves.
申请公布号 US4551039(A) 申请公布日期 1985.11.05
申请号 US19840653459 申请日期 1984.09.24
申请人 BASSECHES, MARK T. 发明人 BASSECHES, MARK T.
分类号 B42F3/00;B42F13/16;(IPC1-7):B42F3/04 主分类号 B42F3/00
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