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发明名称
Portable ladder for inspecting hopper
摘要
申请公布号
KR101103164(B1)
申请公布日期
2012.01.04
申请号
KR20090111471
申请日期
2009.11.18
申请人
发明人
分类号
E06C7/02;E06C1/38
主分类号
E06C7/02
代理机构
代理人
主权项
地址
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