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经营范围
发明名称
Mining apparatus
摘要
申请公布号
GB1122952(A)
申请公布日期
1968.08.07
申请号
GB19660012989
申请日期
1966.03.24
申请人
GEWERKSCHAFT EISENHUTTE WESTFALIA
发明人
分类号
E21D23/00;E21F13/08
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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