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发明名称
Method of drawing off mine roof supports
摘要
申请公布号
PL192724(B1)
申请公布日期
2006.12.29
申请号
PL20000340354
申请日期
2000.05.27
申请人
SIGMA SA
发明人
KULIK JAN;KOWOL JAN;HAJDUK JAN;STACHOWICZ STANISLAW;KRASOWSKI ZBIGNIEW;KOZA HENRYK;KRZACZEK LESZEK
分类号
E21D15/60
主分类号
E21D15/60
代理机构
代理人
主权项
地址
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