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发明名称
HYDRAULIC BOTTOM-HOLE MOTOR
摘要
申请公布号
SU1601307(A1)
申请公布日期
1990.10.23
申请号
SU19884405297
申请日期
1988.04.07
申请人
VNII BUROVOJ TEKHNIKI
发明人
BUDYANSKIJ VIGDOR S,SU;BRUDNYJ-CHELYADINOV SERGEJ YU,SU;KREKIN MIKHAIL V,SU;LITVYAK VENIAMIN A,SU;SVIRINA VALENTINA V,SU
分类号
E21B4/02;(IPC1-7):E21B4/02
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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