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发明名称
METHOD OF UNDERGROUND MINING OF LOW THICKNESS ORE USING THE CHAMBER AND PILLAR SYSTEM
摘要
申请公布号
PL354551(A1)
申请公布日期
2003.12.29
申请号
PL20020354551
申请日期
2002.06.17
申请人
CENTRUM BADAWCZO-PROJEKTOWE MIEDZI CUPRUM SP.Z OO.
发明人
BRYJA ZBIGNIEW;KOSIOR ALEKSANDER;NOLKA ZBIGNIEW;BUTRA JAN;SADECKI ZBIGNIEW;JEDRUSIAK RYSZARD;CIESZKOWSKI HENRYK;IWULSKI ZDZISLAW;DEBKOWSKI RAFAL
分类号
E21C41/22
主分类号
E21C41/22
代理机构
代理人
主权项
地址
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