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发明名称
VORRICHTUNG UND VERFAHREN ZUR ABDICHTUNG VON UNTERIRDISCHEN WAENDEN, GRAEBEN UND DERGLEICHEN
摘要
申请公布号
DD256891(A1)
申请公布日期
1988.05.25
申请号
DD19860298748
申请日期
1986.12.30
申请人
WELZOW BRAUNKOHLE SCHACHTBAU
发明人
GYNZ-REKOWSKI,GUNTHER VON,DD
分类号
E02D19/18;(IPC1-7):E02D19/18
主分类号
E02D19/18
代理机构
代理人
主权项
地址
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