发明名称 A NOVEL LIFE-SAVING DEVICE
摘要 A novel life-saving device (Fig. 1D) comprising a buoyant disk having a top side, a bottom side, a leading edge and a cavity on the bottom side along and adjacent to the leading edge, the cavity having an inner side generally parallel to the leading edge the inner side having an upper edge and a lower edge and a length of line affixed through and about the center of the bouyant disk generally paralell to the leading edge and disposed around the inner side of the cavity.
申请公布号 CA2419140(C) 申请公布日期 2011.07.26
申请号 CA20012419140 申请日期 2001.09.20
申请人 WAHL, MICHAEL;DRISCOL, PAUL K.;DORITY, JOHN B. 发明人 WAHL, MICHAEL;DRISCOL, PAUL K.;DORITY, JOHN B.
分类号 B63C9/26;B63C9/08 主分类号 B63C9/26
代理机构 代理人
主权项
地址