发明名称 Lifting device for sailing boat mast, includes safety device for securing around mast
摘要 <p>A safety device is designed to be placed around the mast at a distance from the lifting device with respect to the mast length direction. The lifting device includes a means for defining the distance between it and the safety device. The lifting device can be slid along the mast.</p>
申请公布号 SE528752(C2) 申请公布日期 2007.02.06
申请号 SE20050001499 申请日期 2005.06.28
申请人 HANS HALLGREN 发明人 HANS HALLGREN
分类号 B63B15/00;E04H12/34 主分类号 B63B15/00
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