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发明名称
ABSPERRVORRICHTUNG FUER GRUBEN
摘要
申请公布号
DE2851881(A1)
申请公布日期
1979.05.31
申请号
DE19782851881
申请日期
1978.11.30
申请人
SVENSSON,FRANK GERT HARRY
发明人
HARRY SVENSSON,FRANK GERT
分类号
E02D29/12;E02D29/14;E03F;(IPC1-7):E03F5/04
主分类号
E02D29/12
代理机构
代理人
主权项
地址
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