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Class Information
Number: 281/26
Name: Books, strips, and leaves > Book, element thereof, or accessory therefor > Binding > Undercut slot
Description: The backs of the signatures and leaves being slotted, the planes of the cuts being inclined to the plane of the backs.

Patents under this class:

Patent Number Title Of Patent Date Issued
8475106 Bookbinding apparatus and image forming system Jul. 2, 2013
5845941 Multi clip binder with unique clip positioning Dec. 8, 1998
4815766 Re-usable test booklet Mar. 28, 1989

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