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发明名称
Drill hole electromagnetic method and apparatus for geophysical exploration utillizing in-phase and out-of-phase nulling voltages
摘要
申请公布号
US3214686(A)
申请公布日期
1965.10.26
申请号
US19600053936
申请日期
1960.09.06
申请人
NEWMONT MINING CORPORATION
发明人
ELLIOT CHARLES L.;OTT OWEN J.;TUSKA JAMES W.;BRANT ARTHUR A.
分类号
G01V3/26
主分类号
G01V3/26
代理机构
代理人
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