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发明名称
VERFAHREN ZUM STEUERN DES ABBAUFORTSCHRITTS VON UNTERIRDISCHEN ABBAUWERKZEUGEN
摘要
申请公布号
DD295892(A5)
申请公布日期
1991.11.14
申请号
DD19900341966
申请日期
1990.06.22
申请人
VEB BRAUNKOHLENBOHRUNGEN UND SCHACHTBAU WELZOW,DE
发明人
HOHMUTH,LUTZ,DE;JURKE,PETER,DE
分类号
E21B44/00;E21B45/00;(IPC1-7):E21B44/00
主分类号
E21B44/00
代理机构
代理人
主权项
地址
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