专利汇可以提供Wheeled boat专利检索,专利查询,专利分析的服务。并且A runabout boat has a tricycle undercarriage retractable for travel of the boat in water, and extendable for transporting the boat on land, either self-propelled or as a trailer. The undercarriage includes a single forward wheel mounted on a strut swingable about a transverse axis to move the wheel between raised retracted position within the hull, and lowered position projected below the hull. In projected position, the wheel is steerable by the boat''s steering wheel. Two rear wheels are supported by struts for swinging between retracted positions in wheel wells above the hull bottom and two projected positions extending partially below the hull, in one of which positions the wheels are free-wheeling, and in the other of which projected positions the wheels are power-driven by friction gears. Skid fins are mounted for projection when the rear wheels are retracted, and for retraction when the rear wheels are projected.,下面是Wheeled boat专利的具体信息内容。
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