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发明名称
Well logging radiation sources
摘要
申请公布号
US3071690(A)
申请公布日期
1963.01.01
申请号
US19540423969
申请日期
1954.04.19
申请人
WELL SURVEYS, INC.
发明人
FEARON ROBERT E.;THAYER JEAN M.
分类号
G01V5/10
主分类号
G01V5/10
代理机构
代理人
主权项
地址
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