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发明名称
MODULAR LADDER
摘要
A modular ladder system is provided, wherein segments may be joined without limit to form a ladder of any desired length.
申请公布号
US2010025154(A1)
申请公布日期
2010.02.04
申请号
US20090576651
申请日期
2009.10.09
申请人
ADVANCED LADDERS
发明人
KIM SANG JIN
分类号
E06C1/38
主分类号
E06C1/38
代理机构
代理人
主权项
地址
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