发明名称 Magnetic spiral bound book
摘要 This disclosure is directed to a spiral bound book having a permanent magnet incorporated in one of the covers and a complementary weight or magnet incorporated in the opposite cover. The arrangement is such that the spiral bound book is rendered readily displayable or used by magnetic attraction to a magnetically attractive surface whereby the weight or magnet in the opposite cover will cause the book to be displayed in an open position. The individual pages may also incorporate a permanent magnet whereby the respective pages can be maintained or disposed in any selectable open position.
申请公布号 US5709409(A) 申请公布日期 1998.01.20
申请号 US19960631617 申请日期 1996.04.10
申请人 ENGEL, PETER H. 发明人 ENGEL, PETER H.
分类号 B42D3/02;B42D5/00;(IPC1-7):B42D1/00;B42D3/00;F42F11/03 主分类号 B42D3/02
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