| 摘要 |
<p>The pack is consisting of a usually circular flat base (1), provided with a peripheral recess (2) in which two elastic strings (3, 4) are threaded , both protruding from the recess (2) at opposite ends. The animal evacutates its droppings on the flat base (1) and the user then pulls the strings to form a bag which he can throw away. <IMAGE></p> |
