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发明名称
VORRICHTUNG ZUR SCHAELENDEN GEWINNUNG VON KOHLEN IN UNTERTAGEBETRIEBEN.
摘要
申请公布号
DE6600471(U)
申请公布日期
1969.01.23
申请号
DE19660000471U
申请日期
1967.05.06
申请人
HALBACH & BRAUN
发明人
分类号
主分类号
代理机构
代理人
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