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发明名称
HYDRAULIC CONTROLLED APPARATUS FOR DRIVING MEASURING SYSTEMS OF LOGGING INSTRUMENTS IN BOREHOLES
摘要
申请公布号
PL131237(B2)
申请公布日期
1984.10.31
申请号
PL19820239020
申请日期
1982.11.11
申请人
发明人
分类号
E21B;E21B44/00;G05D16/08;(IPC1-7):E21B44/00
主分类号
E21B
代理机构
代理人
主权项
地址
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