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发明名称
DISPOSITIF D'EXTRACTION, NOTAMMENT POUR EXPLOITATIONS MINIERES SOUTERRAINES, MUNI D'UN TREPAN AMOVIBLE DU TYPE TOURNANT ET BASCULANT
摘要
申请公布号
FR2536113(B1)
申请公布日期
1987.12.11
申请号
FR19830017977
申请日期
1983.11.10
申请人
RUHRKOHLE AG
发明人
ALBERT PETERS ET WALTER WILD;WILD WALTER
分类号
E21C35/18;E21C35/183;E21C35/193;(IPC1-7):E21C25/02;E21C27/00
主分类号
E21C35/18
代理机构
代理人
主权项
地址
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