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经营范围
发明名称
DRIVE SHIELDS USED FOR FORMING TUNNELS OR THE LIKE
摘要
申请公布号
GB1596814(A)
申请公布日期
1981.09.03
申请号
GB19780007474
申请日期
1978.02.24
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21D9/06;E21D11/38;(IPC1-7):E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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