| 摘要 |
A trailer coupling apparatus comprising means (6, 8) to pivotably mount at least one left wheel and at least one right wheel to a trailer (3), independent means (12) to pivotably connect the trailer (3) to a towing vehicle (5) and means to enable differential pivoting of the said wheels and trailer, with respect to the towing vehicle, as the towing vehicle is turned in use.
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