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经营范围
发明名称
Well conditioning apparatus
摘要
申请公布号
US2457277(A)
申请公布日期
1948.12.28
申请号
US19450597217
申请日期
1945.06.02
申请人
MARCEL SCHLUMBERGER
发明人
SCHLUMBERGER MARCEL
分类号
E21B43/112
主分类号
E21B43/112
代理机构
代理人
主权项
地址
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