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经营范围
发明名称
MACHINES FOR TUNNELLING MINING OR EXCAVATING
摘要
申请公布号
GB1592216(A)
申请公布日期
1981.07.01
申请号
GB19780001343
申请日期
1978.01.13
申请人
BOUYGUES
发明人
分类号
E21D9/10;E21C27/22;E21D9/11;E21D9/12;(IPC1-7):E21D9/10
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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