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发明名称
TURBODRILL
摘要
申请公布号
SU1629452(A1)
申请公布日期
1991.02.23
申请号
SU19884421627
申请日期
1988.05.05
申请人
UFIMSKIJ NEFTYANOJ INSTITUT
发明人
MUFAZALOV ROBERT SH,SU
分类号
E21B4/02
主分类号
E21B4/02
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代理人
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