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经营范围
发明名称
Apparatus for investigating earth formations
摘要
申请公布号
GB827885(A)
申请公布日期
1960.02.10
申请号
GB19570002457
申请日期
1957.01.23
申请人
SCHLUMBERGER WELL SURVEYING CORPORATION
发明人
分类号
E21B49/10
主分类号
E21B49/10
代理机构
代理人
主权项
地址
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