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发明名称
ROOF SUPPORT FOR CAVING OPERATIONS
摘要
申请公布号
PL303007(A1)
申请公布日期
1995.10.16
申请号
PL19940303007
申请日期
1994.04.12
申请人
FABRYKA ZMECHANIZOWANYCH OBUDOW SCIANOWYCH FAZOS
发明人
NOWACZYK STEFAN;MIKA MAREK;ZYCH HENRYK
分类号
E21D23/04;(IPC1-7):E21D23/04
主分类号
E21D23/04
代理机构
代理人
主权项
地址
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