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发明名称
VORRICHTUNG ZUM LOESEN UND FOERDERN VON FLOEZARTIG ANSTEHENDEN MINERALISCHEN ROHSTOFFEN, INSBESONDERE VON KOHLE
摘要
申请公布号
DE4104927(A1)
申请公布日期
1992.08.20
申请号
DE19914104927
申请日期
1991.02.18
申请人
BOCHUMER EISENHUETTE HEINTZMANN GMBH & CO KG, 4630 BOCHUM, DE
发明人
GUSE, KUNO, ING.(GRAD.), 5810 WITTEN, DE;UPADECK, GUENTER, ING.(GRAD.), 4630 BOCHUM, DE
分类号
E21C27/32;E21C41/18
主分类号
E21C27/32
代理机构
代理人
主权项
地址
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