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发明名称
Underground mine communications
摘要
申请公布号
AU6900898(A)
申请公布日期
1998.12.03
申请号
AU19980069008
申请日期
1998.05.27
申请人
HEPONI PTY LIMITED
发明人
GEORGE KEVIN TREVITT
分类号
E21F17/18;G08C17/00;H04B3/11;H04B3/56;H04B3/58
主分类号
E21F17/18
代理机构
代理人
主权项
地址
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