Two piece expandable loose leaf binder

Details Two piece expandable loose leaf binder Two piece expandable loose leaf binder

1993-01-21

1993-10-26

Rosenbaum, Mark

Binder device releasably engaging aperture or notch of sheet

Depository

Face member with back member

402 73, B12F 1300

Patent

active

052559920

ABSTRACT:
A expandable loose leaf binder having a rigid front cover and a rigid back cover. A flexible flap being affixed to the back cover and having two rows of apertures extending from an edge of the back cover. The sheets are retained by post members extending through the front and back covers and a selected pair of apertures in the flap.

REFERENCES:
patent: Re11846 (1900-08-01), Gilson
patent: 1653448 (1927-12-01), Eburne
patent: 3026876 (1962-03-01), Peynado
patent: 3362412 (1968-01-01), Moller
patent: 3435828 (1969-04-01), Miller
patent: 3612708 (1971-10-01), Grundell
patent: 3791747 (1974-02-01), Grundell
patent: 4229022 (1980-10-01), Grundell
patent: 4302123 (1981-11-01), Dengler et al.

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