Paper sheet fastener file and method of assembly

Binder device releasably engaging aperture or notch of sheet – Pliant – deformable sheet retainer

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Details

402 60, 402500, 281 211, 462 71, 462 75, B42F 300

Patent

active

051692546

ABSTRACT:
This invention relates to a new type of paper sheet file assembly and the method of inserting the individual sheets therein.
A multiple element fastening sheet block initially attached to the file itself provides the capability of immediate placement of a letter or other paper document within the file, without requiring use of other preliminary modifying implements such as a two-hole punch.

REFERENCES:
patent: 1707326 (1929-04-01), Smiley
patent: 2799275 (1957-07-01), Darden
patent: 4043573 (1977-08-01), Griffin
patent: 4530176 (1985-07-01), Rejwan

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