发明名称 Easel binder
摘要 An easel notebook binder having a cover with an articulated portion adapted to be folded to an easel providing position includes a one-piece flexible plastic member secured to the underside of a notepaper retaining ring mechanism and providing a tab which is foldable for releasably securing the articulated cover portion in the easel providing position.
申请公布号 US4015863(A) 申请公布日期 1977.04.05
申请号 US19750596614 申请日期 1975.07.17
申请人 HOLUM & SONS CO., INC. 发明人 HOLUM, EDWARD T.
分类号 B42F13/16;B42F13/40;(IPC1-7):A47B23/00;B42D3/00 主分类号 B42F13/16
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