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发明名称
Vortriebsschild zur Herstellung von Tunneln oder Stollen in weichem oder wasserfuehrendem Boden
摘要
申请公布号
DE620764(C)
申请公布日期
1935.11.04
申请号
DED620764D
申请日期
1930.04.20
申请人
PHILIPP HOLZMANN AKT.-GES.
发明人
分类号
E21D9/04
主分类号
E21D9/04
代理机构
代理人
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地址
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