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经营范围
发明名称
CEMENTING HEAD
摘要
申请公布号
SU1199904(A1)
申请公布日期
1985.12.23
申请号
SU19843767007
申请日期
1984.06.13
申请人
POLTAVSKOE OTDEL UK NI GEOLOGO-RAZVEDOCHNOGO INSTITUTA
发明人
GERTS VALENTIN I,SU;VLASOV PETR A,SU;CHERNYSHOV IVAN I,SU
分类号
E21B33/05;(IPC1-7):E21B33/05
主分类号
E21B33/05
代理机构
代理人
主权项
地址
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