| 摘要 |
<p>The ring binder consists of a cover (1) with a supporting strip (2) rivetted to its inner surface adjacent to its spine, and a number of rings (4) which are fastened to the supporting strip to hold looseleaf pages. Each of the rings has a flat portion with projecting teeth which can engage with recesses in one side of the supporting strip when the binder is not in use, and with recesses across the supporting strip when in use. The rings are elastically deformable and have tips which are shaped to clip together when closed, and can be pulled apart for the insertion of papers/documents.</p> |
