| 摘要 |
The lunch box comprises a square base container and a correspondingly shaped cover each intergrally formed from the same polymetric material. The base has an integral handle extending from one side and integrally formed hinge tabs extending rearwardly from an opposite side. The cover, in turn, has integrally formed hinge blocks with slots for receiving the hinge tabs. In open position, the top of the cover is coplanar with the bottom of the base, so that both cover and container engage a flat surface and function as serving trays for contents in the box.
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