| 摘要 |
A package for companion products has two containers (102, 104), each comprising a mating formation (408, 502) protruding in a direction toward the other container and defining a mating surface facing at an angle to the direction of protrusion and engaging the mating surface of the other container. Each container has a generally flat bottom and a center of gravity in vertical alignment with the generally flat bottom, whereby each container can stand independently of the other container. The shape of each container is the same as the other, and the containers are attached to one another. The shape enables the mating surfaces to be brought into engagement with one another by movement in a plane parallel to the bottoms of the containers.
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