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Class Information
Number: 281/50
Name: Books, strips, and leaves > Book or leaf holder > Cooperating with leaf fold > Extending through aperture at juncture
Description: Device wherein the securing means passes through an opening disposed at the fold of the sheet as set forth under part 1 or 2 of the definition of subclass 46.

Patents under this class:

Patent Number Title Of Patent Date Issued
7325836 Combined clamp and retaining pin Feb. 5, 2008
7240887 Book holder Jul. 10, 2007
7052045 Labeling device for bound materials May. 30, 2006
6994377 Sheet binding system Feb. 7, 2006
6547283 Mounting system for a portfolio Apr. 15, 2003
5967689 Binder file Oct. 19, 1999
4974877 Cover binder system Dec. 4, 1990
4773786 Board for writing with pen producing erasable marking, the board having a header in the upper part, hooked to the board by means of a special attachment Sep. 27, 1988

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