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发明名称
Process or method of geophysical prospecting
摘要
申请公布号
US2231048(A)
申请公布日期
1941.02.11
申请号
US19350051068
申请日期
1935.11.22
申请人
BEACHAM CLARENCE C
发明人
BEACHAM CLARENCE C.
分类号
G01V3/04
主分类号
G01V3/04
代理机构
代理人
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