| 摘要 |
PURPOSE:To provide an apparatus capable of attaching and deteching the cover plate of containers, in which a plurality of first projected teeth and first recesses are formed on both sides of an opening of a container, and second recesses and second projected teeth are similarly formed on both sides of the cover plate so that they can be engageable with said first projected teeth and first recesses, whereby locking and unlocking operation of the cover plate to the opening of the container can be achieved with ease and effectively. |
