发明名称 Seesaw ski-track.
摘要 <p>The seesaw ski-track (3) according to the invention has a stationary central part (4) and on either side thereof up and downward moving wings (5). Inexperienced skiers can now step up easily onto the central part (4), as this remains at one and the same level during operation.</p>
申请公布号 EP0302556(A1) 申请公布日期 1989.02.08
申请号 EP19880201601 申请日期 1988.07.25
申请人 DRIESSEN, LUDOVICUS JULIUS ALPHONSUS 发明人 DRIESSEN, LUDOVICUS JULIUS ALPHONSUS
分类号 A63C19/10;(IPC1-7):A63C19/10 主分类号 A63C19/10
代理机构 代理人
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