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发明名称
Wandernder Ausbau fuer untert?glge Grubenbetriebe
摘要
申请公布号
DE1533717(A1)
申请公布日期
1970.07.23
申请号
DE19671533717
申请日期
1967.03.10
申请人
BECORIT GRUBENAUSBAU GMBH
发明人
ARNOLD HAARMANN,DR.-ING.
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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