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发明名称
MESSER ZUM TRENNEN VON GESTEIN
摘要
申请公布号
DE3019422(A1)
申请公布日期
1980.12.11
申请号
DE19803019422
申请日期
1980.05.21
申请人
VEDECKO-VYZKUMNY UHELNY USTAV
发明人
VASEK,JAROSLAV,DIPL.-ING.
分类号
E21B10/56;E21C35/18;E21C35/183;(IPC1-7):E21D9/10;E21B10/62;E21C27/44
主分类号
E21B10/56
代理机构
代理人
主权项
地址
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