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发明名称
PROCESS FOR DRILLING MINERALS
摘要
申请公布号
AU1394388(A)
申请公布日期
1988.10.10
申请号
AU19880013943
申请日期
1988.03.09
申请人
HANNELORE BECHEM
发明人
ULRICH BECHEM;KLAUS BECHEM;PHILIPP BECHEM;DIETER LENZEN
分类号
E21C27/10;E21D9/10
主分类号
E21C27/10
代理机构
代理人
主权项
地址
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