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经营范围
发明名称
Striking Force Generating Apparatus
摘要
申请公布号
KR100556128(B1)
申请公布日期
2006.03.03
申请号
KR20040042520
申请日期
2004.06.10
申请人
发明人
分类号
E21B7/04;E02D7/08;E21B1/02;E21B1/16;E21B4/00
主分类号
E21B7/04
代理机构
代理人
主权项
地址
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