| 摘要 |
<p>A tag for securing the documents has a head with a slot for the document, and two arms extending from it, the whole being made of plastics material. One arm carries a cylinder and is attached to the side of the cylinder, which is shaped as a rivet. In this region the arm has a circular chamfer. This cylinder has two conical cup shaped enlargements, one in the base facing outwards and the other in the base facing outwards. One arm has a circular hole. The whole is pushed through a hole in the document, and the rivet part pushed through the hole in the arm to make a connection.</p> |
