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发明名称
Downhole recorder for use in wells
摘要
申请公布号
US4660638(A)
申请公布日期
1987.04.28
申请号
US19850741074
申请日期
1985.06.04
申请人
HALLIBURTON COMPANY
发明人
YATES, JR., DONALD N.
分类号
E21B43/1185;E21B47/06;E21B47/12;(IPC1-7):E21B47/00
主分类号
E21B43/1185
代理机构
代理人
主权项
地址
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