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经营范围
发明名称
Geochemical prospecting
摘要
申请公布号
US2310291(A)
申请公布日期
1943.02.09
申请号
US19400357923
申请日期
1940.09.23
申请人
ESME E. ROSAIRE
发明人
HORVITZ LEO
分类号
G01V9/00
主分类号
G01V9/00
代理机构
代理人
主权项
地址
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