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发明名称
Radioactivity responsive systems for use in boreholes
摘要
申请公布号
US2769920(A)
申请公布日期
1956.11.06
申请号
US19520273751
申请日期
1952.02.27
申请人
SCHLUMBERGER WELL SURVEYING CORPORATION
发明人
KRASNOW SHELLEY
分类号
G01V5/06
主分类号
G01V5/06
代理机构
代理人
主权项
地址
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