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经营范围
发明名称
TUNNELLING APPARATUS
摘要
申请公布号
GB1562054(A)
申请公布日期
1980.03.05
申请号
GB19780008322
申请日期
1978.03.02
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21D9/06;E21D9/08;E21D9/087;E21D9/13;(IPC1-7):21D9/04
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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