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发明名称
MINING ROOF SUPPORT OF LIMITED YIELDABILITY
摘要
申请公布号
PL112134(U1)
申请公布日期
2002.11.04
申请号
PL20010112134U
申请日期
2001.04.23
申请人
GLOWNY INSTYTUT GORNICTWA
发明人
STOINSKI KAZIMIERZ;KOWALSKI EDWARD;KOZIEL KAROL;KOWAL JOZEF;KOWAL ANDRZEJ
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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