Binder

Details Binder Binder

1986-06-26

1987-04-14

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Sheet retainer with releasable keeper

Keeper cooperating with retainer of varying cross-section

402 68, B42F 1312, B42F 1300

Patent

active

046574220

ABSTRACT:
A manually filled and operated binder for stacks of similarly apertured sheets, having a sidewall pierced at mutually spaced points. The outer aspect of the apertured wall is countersunk at the pierce hole. The opposite wall is provided with recesses aligned with the countersunk aperture for receiving pins to secure sheets having apertures in alignment with the apertures of the sidewalls.

REFERENCES:
patent: 1900601 (1933-03-01), Felder
patent: 4529226 (1985-07-01), Weiman

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