发明名称 Transparency presentation organizer for overhead projectors
摘要 The transparency presentation organizer of the invention is in the nature of a portfolio binder, including left, middle and right sections foldable one with respect to another to open and placed on top of an overhead projector in displaying transparencies placed atop its middle section, composed of a rigid material transparent to projected light, and dimensioned to accept transparencies of 8+E,fra 1/2+EE ''x11'', 8+E,fra 1/2+EE ''x14'' and 11''x17'' and to close in storing such transparencies and enabling the organizer to be carried about under one's arm or placed within a briefcase carried in one's hand.
申请公布号 US5676443(A) 申请公布日期 1997.10.14
申请号 US19960767781 申请日期 1996.12.17
申请人 DERELANKO, MICHAEL J. 发明人 DERELANKO, MICHAEL J.
分类号 G03B21/132;(IPC1-7):G03B21/00 主分类号 G03B21/132
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