Folder

A folder comprising:

• (a) a base sheet defined by a set of outside edges;
• (b) a central score region running between a pair of opposed outside edges along which region said base sheet is foldable, whereby said base sheet, when folded at a central fold line which extends along said central score region, has a front side portion and a back side portion, a boundary between said side portions being defined by said central fold line, each side portion including an outside surface which faces the exterior of the folder, when folded, and an inside surface, which faces the interior of the folder, when folded;
• (c) said base sheet including one flap portion extending outwardly from one of said side portions and another flap portion extending outwardly from the other of said side portions, said flap portions each being defined by an outer score region running between said flap portion and another part of said base sheet, whereby each said flap portion, when folded along said outer score region, is in overlying relationship with said inside surface of one of said side portions;
• (d) one of said flap portions including an area constituting a rotary file card, which area is partially defined by a border, which border includes means for detaching said rotary file card from the folder to provide a detached rotary file card;
• (e) said rotary file card including means for coupling said rotary file card with a rotary file card holder, said coupling means including means defining a pair of openings which cooperate with guides of a rotary file card holder, each opening including a restricted passage having sides which yield when a guide on a rotary file card holder is passed through said passage and a receiving space in which the guide is seated for normal use after it has passed through said restricted passage.

A folder comprising:

• (a) a base sheet defined by a set of outside edges;
• (b) a central score region running between a pair of opposed outside edges along which region said base sheet is foldable, whereby said base sheet, when folded at a central fold line which extends along said central score region, has a front side portion and a back side portion, a boundary between said side portions being defined by said central fold line, each said front and back portions including an outside surface which faces the exterior of the folder, when folded, and an inside surface, which faces the interior of the folder, when folded;
• (c) said base sheet including a main tab portion at one of said outside edges thereof;
• (d) an overlapping sheet on at least one of said inside surfaces, said overlapping sheet extending over one part of said one inside surface to provide a pocket between said overlapping sheet and said one part of said inside surface, said overlapping sheet including an overlapping tab portion, said overlapping tab portion extending over said main tab portion to provide a plural-thickness tab, at least part of said overlapping tab portion being affixed to said base sheet to provide a pocket with at least one closed lateral edge;
• (e) said base sheet including a flap portion extending outwardly therefrom, said flap portion being defined by an outer score region running between said flap portion and another part of said base sheet, whereby said flap portion, when folded at an outer fold line which extends along said outer score region, is in overlying relationship with said inside surface of at least one of said side portions;
• (f) at least part of said flap portion including an area having the shape of a rotary file card, which area is partially defined by a border, which border includes means for detaching said area having the shape of a rotary card file from the folder to provide a rotary file card;
• (g) said rotary file card including means for coupling said rotary file card with a rotary file card holder, said coupling means including means defining a pair of openings which cooperate with guides on a rotary file card holder, each opening including a restricted passage having sides which yield when a guide on a rotary file card holder is passed through said passage and a receiving space in which the guide is seated for normal use after it has passed through said restricted passage.