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经营范围
发明名称
Mine roof supports
摘要
申请公布号
AU663120(B2)
申请公布日期
1995.09.28
申请号
AU19920027128
申请日期
1992.10.16
申请人
GULLICK DOBSON LIMITED
发明人
COLIN GORDON MICHAEL MERRIMAN
分类号
E21D23/12;(IPC1-7):E21D17/05
主分类号
E21D23/12
代理机构
代理人
主权项
地址
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