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发明名称
A Equipment Investigation Appratus of Manhole
摘要
申请公布号
KR101112629(B1)
申请公布日期
2012.02.15
申请号
KR20090040189
申请日期
2009.05.08
申请人
发明人
分类号
G02B23/26;E03F7/00;H04N5/225
主分类号
G02B23/26
代理机构
代理人
主权项
地址
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