| 摘要 |
<p>A system for retaining a sheet, such as paper. The system includes a first elongate portion (12) pivotally hinged to a second elongate portion (14) . Preferably the hinge (15) extends the length of the system. The sheet (102) is held between the first portion and the second portion by magnetic forces. The sheet may additionally be punctured by a piercing member (22) present on one of the elongate portions .</p> |
