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发明名称
ELECTRICAL PROSPECTING METHOD AND APPARATUS
摘要
申请公布号
CA531904(A)
申请公布日期
1956.10.16
申请号
CAD531904
申请日期
申请人
SPERRY-SUN WELL SURVEYING COMPANY
发明人
JOHN M. PEARSON;CHARLES R. NICHOLS
分类号
主分类号
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