Books – strips – and leaves – Book – element thereof – or accessory therefor – Leaves
Patent
1992-04-10
1993-05-04
Rosenbaum, Mark
Books, strips, and leaves
Book, element thereof, or accessory therefor
Leaves
281 29, B42D 500
Patent
active
052074560
ABSTRACT:
A book according to the present invention has a front cover and a back cover joined by a spine. A plurality of pages are bound to each other and to the cover near the spine. All or nearly all of the pages have a lay flat hinge so that the book will lie flat when opened. The lay flat hinge comprises a weakened portion, a first non-weakened portion between the weakened portion and a head of a page, and a second non-weakened portion between the weakened portion and a foot of the page. The weakened portion allows the book to lie flat when opened and the first and second non-weakened portions prevent pages from being easily torn from the book and prevent the weakened portion from being visible along edges of the book.
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Fridie Jr. Willmon
R.R. Donnelley & Sons Company
Rosenbaum Mark
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