发明名称 Ladder has telescopic adapter fixed to one side-member with internal spring and external bar-operated clamp
摘要 <p>A ladder has an adapter extension which is clamped to the bottom of one side-member when the ladder is used on an uneven base e.g. presented sideways on steps. The adapter is a telescopic unit with an internal spring and an externally-operated clamp.</p>
申请公布号 DE20307297(U1) 申请公布日期 2003.08.14
申请号 DE2003207297U 申请日期 2003.05.08
申请人 KOEHL, ERIK;KAROS, GUNTRAM 发明人
分类号 E06C7/44;(IPC1-7):E06C7/44 主分类号 E06C7/44
代理机构 代理人
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