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发明名称
Electrical well-logging system
摘要
申请公布号
US2268138(A)
申请公布日期
1941.12.30
申请号
US19390308520
申请日期
1939.12.11
申请人
SHELL DEVELOPMENT COMPANY
发明人
EVJEN HAAKON MUUS
分类号
G01V3/24
主分类号
G01V3/24
代理机构
代理人
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地址
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