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发明名称
RADIO ACTIVITY AND COLLAR POSITION LOGGING APPARATUS FOR CASED BOREHOLES
摘要
申请公布号
CA551015(A)
申请公布日期
1957.12.31
申请号
CAD551015
申请日期
申请人
PERFORATING GUNS ATLAS CORPORATION
发明人
SERGE A. SCHERBATSKOY;JACQUES H. CASTEL
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