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发明名称
DRILLING TOOL
摘要
申请公布号
SU920185(A1)
申请公布日期
1982.04.15
申请号
SU19782690890
申请日期
1978.11.30
申请人
SVERDLOVSKIJ GORNYJ I IM.V.V.VAKHRUSHEVA;URALSKOE TERRITORIALNOE GEOLOGICHESKOE UPRAVLENIE
发明人
BAZHUTIN ALEKSANDR N,SU;POROZHSKIJ KONSTANTIN P,SU;ALEKSANDROV GENNADIJ S,SU;KARMALSKIJ GRIGORIJ K,SU
分类号
E21B7/00;E21B4/14;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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