American Trading and Production Corporation

Thomas W Bourgeois

William D Stuertz

Looseleaf binder

A stability unit used in combination with a three ring binder of the type having front and back covers hingedly mounted between a spine. A binder assembly including arcuate rings halves is mounted to either the spine or cover. The stability unit is mounted to either a spine, cover or both. The stability unit includes recesses adjacent each ring halve and is constructed and arranged such that a ring halve may be inserted therewithin past a resilient projection which provides a locking function. When locked, the binder may be positioned in an upright attitude.

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Spring Park, MN, United States of America

Thomas W Bourgeois