| 摘要 |
A retaining structure for securing first and second flaps of a box structure in an overlapping, closed condition comprising a first tab pliably coupled to the first flap and defining a free end having a substantially circular shape and an a complementary aperture having a shape and size substantially the same as the free end and disposed in substantial alignment with the free end when the first and second flaps are in the overlapping condition. The tab and aperture cooperate when the tab is pivoted so as to be retainably received by the aperture.
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