Closure mechanism for a loose-leaf holder

Closure mechanism for a loose-leaf holder

Continuous ring loose leaf notebook

D ring binder

Device for binding holed sheets

Device for holding sheets provided with perforations

Device for perfected closure of the mechanism having flat rings

Device for the impaling of loose leaves

Easy open ring binder

Embossed cover for ring binder mechanism

Fastener for a ring binder and method of producing a binder asse

Flanged cover with prongs for a ring binder assembly

Folder having covers with support portions

Lever arch binder mechanism with complementary ring tips

Lockable ring binder mechanism

Locking booster ring binder mechanism

Locking booster ring binder mechanism

Locking mechanism for a ring binder

Locking ring binder

Locking ring binder mechanism with control slide