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经营范围
发明名称
a hydraulic breaker assembl
摘要
申请公布号
KR100870983(B1)
申请公布日期
2008.12.01
申请号
KR20070028269
申请日期
2007.03.22
申请人
发明人
分类号
E21B10/36
主分类号
E21B10/36
代理机构
代理人
主权项
地址
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