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发明名称
Means for detecting changes in dielectric constant of thin strata of lithological formations traversed by a borehole
摘要
申请公布号
US2722657(A)
申请公布日期
1955.11.01
申请号
US19530366023
申请日期
1953.07.03
申请人
PERFORATING GUNS ATLAS CORPORATION
发明人
JANSSEN HERMANN
分类号
G01V3/26
主分类号
G01V3/26
代理机构
代理人
主权项
地址
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