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发明名称
DOWNHOLE MEASURING DEVICE
摘要
申请公布号
GB8708039(D0)
申请公布日期
1987.05.07
申请号
GB19870008039
申请日期
1987.04.03
申请人
WOOD GROUP DRILLING & PRODUCTION SERVICES LTD
发明人
分类号
主分类号
代理机构
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