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发明名称
MINE ROOF SUPPORT
摘要
申请公布号
AU509119(B2)
申请公布日期
1980.04.17
申请号
AU19780034568
申请日期
1978.03.29
申请人
FLETCHER SUTCLIFFE WILD LTD
发明人
L.R. BOWER;M. WAKE
分类号
E21D23/04;(IPC1-7):E21D23/04
主分类号
E21D23/04
代理机构
代理人
主权项
地址
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