| 摘要 |
<p>FLAT-OPENING BOX A flat opening box consisting of a central base tray to the sides of which cover shells are hingedly connected to open out onto a flat surface; pivot link members are connected to movable trays in the cover shells which are also hingedly connected to the cover shells so that the box can be opened to a fully flat condition to prevent tilting and spillage of its contents when open.</p> |
