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经营范围
发明名称
ARM FOR ROCK DRILLING ROD STORAGE
摘要
申请公布号
KR20130093368(A)
申请公布日期
2013.08.22
申请号
KR20120014923
申请日期
2012.02.14
申请人
EVERDIGM CO., LTD.
发明人
HWANG, UN KYOO;YANG, JUNG WOO
分类号
E21B11/04;E02F5/30;E21B1/12
主分类号
E21B11/04
代理机构
代理人
主权项
地址
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