Binder device releasably engaging aperture or notch of sheet – Pliant – deformable sheet retainer – Secured by folded portion thereof
Patent
1981-10-05
1983-11-15
Rosenbaum, Mark
Binder device releasably engaging aperture or notch of sheet
Pliant, deformable sheet retainer
Secured by folded portion thereof
402 64, 402 80P, B42F 1302
Patent
active
044152892
ABSTRACT:
An improved loose leaf binder more particularly a binding post having a head of novel design. The novel head design facilitates the locking of binding post securely in the binder and the unlocking for removal from the binder.
REFERENCES:
patent: 3285251 (1966-11-01), Ivory et al.
Barba Joseph
Hochrain Gerd L.
Boorum & Pease Company
Rosenbaum Mark
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