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发明名称
Electrical prospecting method and apparatus
摘要
申请公布号
US2398800(A)
申请公布日期
1946.04.23
申请号
US19400344227
申请日期
1940.07.06
申请人
SPERRY-SUN WELL SURVEYING COMPANY
发明人
MILLINGTON JOHN W.
分类号
G01V3/30
主分类号
G01V3/30
代理机构
代理人
主权项
地址
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