发明授权
US6053227A Traction device for a wheeled vehicle 有权
用于轮式车辆的牵引装置

Traction device for a wheeled vehicle
摘要:
An emergency traction device is easily and securely fitted on vehicles having tires of different diameters and widths. A single winch sizes and secures the traction device for the proper tire diameter and then for the proper tire width.
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