发明名称 Book holder
摘要 A book holder affixed to a book for holding the book in an open and readable position. The book holder has a transparent face sheet which extends over the surface of both open pages of the book. The book holder has a second page holding sheet which is affixed along one edge of the transparent face sheet and extends under a plurality of the pages of the book.
申请公布号 US4681291(A) 申请公布日期 1987.07.21
申请号 US19860879017 申请日期 1986.06.26
申请人 HOLLADAY, WILFRED E. 发明人 HOLLADAY, WILFRED E.
分类号 A47B23/06;(IPC1-7):A47B97/04 主分类号 A47B23/06
代理机构 代理人
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