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经营范围
发明名称
BOORMACHINE VOOR TUNNELS.
摘要
申请公布号
NL173086(B)
申请公布日期
1983.07.01
申请号
NL19700016174
申请日期
1970.11.04
申请人
BOUYGUES S.A. TE CLAMART, FRANKRIJK.
发明人
分类号
E21C27/22;E21D9/10;E21D9/11;(IPC1-7):E21D9/10
主分类号
E21C27/22
代理机构
代理人
主权项
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