Ring binder

Details Ring binder Ring binder

1996-10-02

1998-05-26

Pitts, A. L.

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 29, 402 31, B42D 300

Patent

active

057555257

ABSTRACT:
A ring binder comprising

REFERENCES:
patent: 2158056 (1939-05-01), Cruzan
patent: 4566817 (1986-01-01), Barrett et al.
patent: 5346325 (1994-09-01), Yamanoi

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