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发明名称
Einrichtung zur Stützung einer Tunnelbrust
摘要
申请公布号
CH402925(A)
申请公布日期
1965.11.30
申请号
CH19630011711
申请日期
1963.09.23
申请人
PRADER AG
发明人
PRADER,DURI;VOLLENWEIDER,ULRICH
分类号
E21D9/06;E21D19/04;(IPC1-7):E01G3/02
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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