发明名称 Visual display presentation box
摘要 A portfolio with a ring or other type binder for securing visual display material uniformly while being carried or during visual display presentations. This box-like portfolio features a double hinged top which, when mobilized by use of its pull strap feature, activates its lid and its internal members, opening the portfolio to form a unique presentation easel which serves to produce an impressive prelude to any visual display presentation.
申请公布号 US4420270(A) 申请公布日期 1983.12.13
申请号 US19820423294 申请日期 1982.09.24
申请人 MCDONNELL DOUGLAS CORPORATION 发明人 ROSSELLO, HENRY S.
分类号 A45C5/00;A45C13/02;B42F13/40;G09F5/04;(IPC1-7):A45C3/02 主分类号 A45C5/00
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