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发明名称
Dispositif hydraulique de mise en place d'un étancon de mine.
摘要
申请公布号
BE597516(A1)
申请公布日期
1961.03.15
申请号
BE19600597516
申请日期
1960.11.25
申请人
KARL GERLACH;HANS GERLACH
发明人
KARL GERLACH;HANS GERLACH
分类号
(IPC1-7):E21D
主分类号
(IPC1-7):E21D
代理机构
代理人
主权项
地址
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