| 摘要 |
A wheeled dolly is enabled for rolling movement on a supporting surface. A centrally positioned sidewall extends upwardly from a top surface of the platform. A vertical jacking device is rested in contact with the supporting surface interior of the sidewall. The sidewall is tall enough so that a jack foot is restrained within the sidewall, and therefore not able to move laterally on the platform so as to tip it. A trailer is joined with the jacking device enabling manual movement of the trailer and its load by maneuvering the platform.
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