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发明名称
Signalling system for radioactive well logging
摘要
申请公布号
US2436008(A)
申请公布日期
1948.02.17
申请号
US19430472894
申请日期
1943.01.19
申请人
SHELLEY KRASNOW;CURTISS LEON F
发明人
KRASNOW SHELLEY;CURTISS LEON F.
分类号
G01V5/06;H01J47/04
主分类号
G01V5/06
代理机构
代理人
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地址
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