| 摘要 |
A support device for use with an open-topped trolley to provide a platform across the open top of the trolley for transporting heavy and/or bulky articles. The platform has members for engaging the top of the trolley and securing it thereto. The members are shaped so that they interfit with corresponding members of another support device. In this way the support devices can be stacked in a neat arrangement when not in use.
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