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Class Information
Number: 402/27
Name: Binder device releasably engaging aperture or notch of sheet > Sheet retainer travels arcuate path > Coplanar with axis of rotation
Description: Device wherein the sheet retainer or a component thereof pivots about an axis which axis lies in the same plane as does the major axis of the retainer or components.

Sub-classes under this class:

Class Number Class Name Patents
402/28 Preceded by a rectilinear travel 6

Patents under this class:

Patent Number Title Of Patent Date Issued
7648302 Ring binder mechanism Jan. 19, 2010
6174100 Pin binding assembly Jan. 16, 2001
6007265 Spur eyelet fastener with uniform circular base for securing ring binder mechanism Dec. 28, 1999
5903958 Spur eyelet May. 18, 1999
5160209 Fastener assembly for concealably fastening a paper retaining mechanism to a binder Nov. 3, 1992
4787738 Holder for overhead projection system transparencies Nov. 29, 1988
4733985 Binder mechanism Mar. 29, 1988
4693625 Binder assemblies Sep. 15, 1987
4531854 Device for holding sheets provided with perforations Jul. 30, 1985
4486113 Claw binder Dec. 4, 1984
4172675 Binding mechanism for loose-leaf binder Oct. 30, 1979

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