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发明名称
FOLDABLE STEP DEVICE AND METHOD
摘要
A foldable step apparatus comprising a foldable parallelepiped frame with a safety locking mechanism, a step, and a tension device, such as a spring, to enable easy folding and unfolding.
申请公布号
US2009308688(A1)
申请公布日期
2009.12.17
申请号
US20090486142
申请日期
2009.06.17
申请人
TAYAR ELIAHU
发明人
TAYAR ELIAHU
分类号
E06C9/08;B60R3/02;E06C1/38
主分类号
E06C9/08
代理机构
代理人
主权项
地址
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