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发明名称
PROCEDIMENTO PER LA REALIZZAZIONE DI TUNNEL SOTTERRANEI
摘要
申请公布号
IT1220284(B)
申请公布日期
1990.06.15
申请号
IT19880003318
申请日期
1988.01.25
申请人
TREVI SPA
发明人
TREVISANI DAVIDE
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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