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发明名称
Focused well logging systems
摘要
申请公布号
US3068401(A)
申请公布日期
1962.12.11
申请号
US19580769239
申请日期
1958.10.23
申请人
PGAC DEVELOPMENT COMPANY
发明人
JANSSEN HERMANN
分类号
G01V3/24
主分类号
G01V3/24
代理机构
代理人
主权项
地址
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