Patent ID: 7300222

Claim:
A holder for flippable pages comprising: a panel having a face surface and a back surface; a ring system attached on the face surface of the panel, a cover with an aperture adjacent the ring system, the ring system including a plurality of hingedly connected leaves for relative movement between the leaves, plurality of rings, each ring having two ring halves each ring half being attached to one of the leaves respectively; and a rotatable locking device consisting essentially of a rotatable threaded cylinder and the aperture in the cover that guides the rotatable threaded cylinder, the rotatable locking device locks when administered with a rotational force, and traverses in a direction perpendicular to the face surface of the panel, and can press against the leaves and secure the leaves from moving in order to lock the ring, the locking device includes an area between the cover and the leaves that is larger than the aperture of the cover so the locking device is not removable from the aperture of the cover.