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经营范围
发明名称
MINERAL MINING INSTALLATION
摘要
申请公布号
GB1585738(A)
申请公布日期
1981.03.11
申请号
GB19780006833
申请日期
1978.02.21
申请人
GEWERKSCHAFT EISENHUTTE WESTFALIA
发明人
分类号
E21C27/24;E21C27/34;E21C29/00;E21C35/12;(IPC1-7):E21C27/20
主分类号
E21C27/24
代理机构
代理人
主权项
地址
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