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发明名称
STABILIZING ROLLING CUTTER REAMER
摘要
申请公布号
SU595481(A1)
申请公布日期
1978.02.28
申请号
SU19741993957
申请日期
1974.02.11
申请人
CHUMAKOV IVAN D,SU;KUDEKOV YURIJ F,SU;SKORNYAKOV YURIJ M,SU
发明人
CHUMAKOV IVAN D,SU;KUDEKOV YURIJ F,SU;SKORNYAKOV YURIJ M,SU
分类号
E21B10/30;E21B7/28;(IPC1-7):E21B9/24
主分类号
E21B10/30
代理机构
代理人
主权项
地址
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