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发明名称
Verfahren und Vorrichtung zur Herstellung von Tunneln, Druckstollen od. dgl.
摘要
申请公布号
AT122646(B)
申请公布日期
1931.05.11
申请号
ATD122646
申请日期
1930.06.11
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
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地址
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