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发明名称
MEJORAS EN METODO PARA REDUCIR LA FRICCION Y LA TORSION DE ROTACION EN LA PERFORACION ROTATORIA DE POZOS DE PETROLEO Y DE GAS
摘要
申请公布号
MX148742(A)
申请公布日期
1983.06.08
申请号
MX19770170166
申请日期
1977.08.08
申请人
ANITA DODD
发明人
ANITA DODD
分类号
C09K8/03;E21B21/00;E21B31/03;(IPC1-7):E21B3/00;E21B43/00
主分类号
C09K8/03
代理机构
代理人
主权项
地址
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