Fastening binder ring mechanisms to binders

Binder device releasably engaging aperture or notch of sheet – Sheet retainer with releasable keeper

Reexamination Certificate

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Details

C402S026000, C402S036000, C402S075000, C024S095000, C024S347000, C024S350000, CD19S026000, CD19S027000, CD19S032000

Reexamination Certificate

active

07073968

ABSTRACT:
Ring binder mechanism with special pronged fasteners secured thereto for fastening it to a binder, the special fastener per se, and a method of making the fasteners involving sheet metal stamping.

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