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发明名称
DIREKTVERSTURZKOMBINATION BAGGER-ABSETZER BEI OFFENEM GRABEN
摘要
申请公布号
DD245923(A1)
申请公布日期
1987.05.20
申请号
DD19860286886
申请日期
1986.02.07
申请人
VE BRAUNKOHLENKOMBINAT BITTERFELD - STAMMBETRIEB -,DD
发明人
JAEKEL,ALFRED,DD;DOERING,KLAUS,DD
分类号
E21C47/04;(IPC1-7):E21C47/04
主分类号
E21C47/04
代理机构
代理人
主权项
地址
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