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发明名称
Shielding in irradiation well logging
摘要
申请公布号
US2842678(A)
申请公布日期
1958.07.08
申请号
US19530379414
申请日期
1953.09.10
申请人
PAN AMERICAN PETROLEUM CORPORATION
发明人
SILVERMAN DANIEL
分类号
G01V5/12
主分类号
G01V5/12
代理机构
代理人
主权项
地址
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