发明名称 Book support
摘要 A holder for an open book formed of a single piece of transparent plastic shaped to hold the book in a more or less vertical position, incorporating a spring clip on the back. A pole is attached to the holder. The bottom of the pole is shaped for ready insertion into the ground, and also designed to mount a plurality of legs attached by joints or pegs and a deformable ring. The book holder can be used without legs on a soft surface (e.g., a beach) or with legs on a hard surface.
申请公布号 US4239171(A) 申请公布日期 1980.12.16
申请号 US19780873811 申请日期 1978.01.31
申请人 HULS, CHRISTINA;HULS, EDWARD 发明人 HULS, CHRISTINA;HULS, EDWARD
分类号 A47B19/00;F16M13/00;(IPC1-7):F16M13/00 主分类号 A47B19/00
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