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发明名称
INSTALLATION MINIERE POUR L'EXTRACTION DE COMBUSTIBLES FOSSILES
摘要
申请公布号
FR2289721(A1)
申请公布日期
1976.05.28
申请号
FR19750032595
申请日期
1975.10.24
申请人
KAISER RESOURCES LTD
发明人
分类号
E21C25/68;E21C35/20;E21C41/00;E21D9/12;E21F13/00;E21F13/04;(IPC1-7):E21F13/06;B65G53/02;B65G53/44;E21C27/20
主分类号
E21C25/68
代理机构
代理人
主权项
地址
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