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发明名称
APPARATUS EQUIPPED IN MUD GUN FOR INDICATING CENTER OF TAP HOLE
摘要
申请公布号
KR100770317(B1)
申请公布日期
2007.10.26
申请号
KR20010022261
申请日期
2001.04.25
申请人
发明人
分类号
C21B7/12
主分类号
C21B7/12
代理机构
代理人
主权项
地址
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