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Class 281/26 - Undercut slot


Subclass of Class 281 - Books, strips, and leaves
Definition: The backs of the signatures and leaves being slotted, the
No. of patents: 2
Last issue date: 12/08/1998


NumberTitleIssue Date
5845941Multi clip binder with unique clip positioning
A clip binder for holding paper which does not require damaging the material to be held within the clips. The clip binder has a front cover, a binder spine, a back cover and a pair of clips mounted on each end of the binder spine. The clips have a clip sp...
12/08/1998
4815766Re-usable test booklet
A re-usable examination booklet for the administration of written tests includes overlaid question sheets bound together with the unbound edge of each sheet overlapping the underlying sheet. An answer sheet may be inserted in the booklet beneath the quest...
03/28/1989
 
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