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经营范围
发明名称
Electrical prospecting
摘要
申请公布号
US1934079(A)
申请公布日期
1933.11.07
申请号
US19320592986
申请日期
1932.02.15
申请人
SWEDISH AMERICAN PROSPECTING CORPORATION
发明人
LUNDBERG HANS T. F.;KIHLSTEDT FOLKE H.
分类号
G01V3/02
主分类号
G01V3/02
代理机构
代理人
主权项
地址
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