发明名称 Thin ice inflatable rescue ladder
摘要 A rescue ramp is provided having a dual lobed, hinged inflatable ramp having two pairs of spaced inflatable tubes and a flexible floor mounted between each and connecting the tubes. A rope ladder is mounted to the floors of the lobes.
申请公布号 US6190222(B1) 申请公布日期 2001.02.20
申请号 US19990443398 申请日期 1999.11.19
申请人 SENGER DAVID 发明人 SENGER DAVID
分类号 B63C9/32;(IPC1-7):B63C9/32 主分类号 B63C9/32
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