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发明名称
VORRICHTUNG ZUM EINBRINGEN VON FILTERROHREN IN BOHRUNGEN
摘要
申请公布号
DD282152(A7)
申请公布日期
1990.09.05
申请号
DD19870311379
申请日期
1987.12.28
申请人
VEB BRAUNKOHLENWERK COTTBUS,DD
发明人
ABRAHAM,ERHARD,DD;SCHMIDT,JOHANNES,DD;MEINTZ,EBERHARD,DD
分类号
E03B3/18;(IPC1-7):E03B3/18
主分类号
E03B3/18
代理机构
代理人
主权项
地址
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