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发明名称
METHOD OF MINING RESIDUES FROM A BED OF USEFUL MINERAL, IN PARTICULAR HARD COAL ONE
摘要
申请公布号
PL186861(B1)
申请公布日期
2004.03.31
申请号
PL19980325693
申请日期
1998.04.01
申请人
KLUKA JERZY;KUGIEL MIROSLAW;LAYER ANDRZEJ;SKIBA JAN;STOPYRA MICHAL
发明人
KLUKA JERZY;KUGIEL MIROSLAW;LAYER ANDRZEJ;SKIBA JAN;STOPYRA MICHAL
分类号
E21C41/18
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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