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发明名称
GERAET FUER DIE SCHAELENDE KOHLENGEWINNUNG MIT EINER EINRICHTUNG ZUR STAUBBEKAEMPFUNG.
摘要
申请公布号
DE6602926(U)
申请公布日期
1969.08.07
申请号
DE19660002926U
申请日期
1967.01.19
申请人
BERGWERKSVERBAND GMBH.
发明人
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主分类号
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