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经营范围
发明名称
Procedure for creating arches in tunnels by means of reticulated archways equipped with mutable joints
摘要
申请公布号
IT1235211(B)
申请公布日期
1992.06.23
申请号
IT19890084602
申请日期
1989.05.15
申请人
FRANCO E C. S.A.S.
发明人
PIERLUCIANO FRANCO
分类号
E21D;(IPC1-7):E21D/
主分类号
E21D
代理机构
代理人
主权项
地址
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