发明名称 POWER-OPERATED RETRACTABLE LADDER FOR PLEASURE BOATS
摘要 <p>Ladder for pleasure boats, facilitating entry into and return from the water, has a stationary part rigidly connected to the hull and a part which can move relative to it between an extended and a retracted position and wich has cross element(s) forming a step which is in the lower position when this part is extended. A unit between the two parts can move the movable part in at least one direction. Preferably, the movable part w.r.t. the stationary part, is movable vertically back and forth. The stationary part may have vertical guide elements connected telescopically to parts of the movable part. The device is useful for water-skiers, swimmers, or divers.</p>
申请公布号 CA1014916(A) 申请公布日期 1977.08.02
申请号 CA19730184679 申请日期 1973.10.31
申请人 HOVEY, CECIL C. 发明人 HOVEY, CECIL C.
分类号 B63B27/14 主分类号 B63B27/14
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