| 摘要 |
<p>The folder according to the present invention comprises (1) a back portion adapted to engage one major surface of a stack of sheets; (2) a side retaining portion adapted to engage the opposite major surface of the stack ; (3) a base portion adapted to engage anedge surface of the stack, which base portion has a first edge attached to the back portion a second edge attached to the side retaining portion, and has a width between those edges about equal to the maximum thickness of a stack of sheets to be received in the folder; (4) a first anchor portion attached to the back portion along one end of the side retaining portion; and (5) two edge retaining portions, each having an edge attached to the anchor portion along an edge parallel to and spaced a different distance from the edge on the back portion at which the side retaining portion is attached, and having second edges attached to the side retaining portion along an edge parallel to and spaced a different distance from the edge by which the side retaining portion is attached to the base portion.</p> |
