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发明名称
Well testing tool
摘要
申请公布号
US2229635(A)
申请公布日期
1941.01.28
申请号
US19380233239
申请日期
1938.10.04
申请人
ALEXANDER BOYNTON
发明人
BOYNTON ALEXANDER
分类号
E21B33/124;E21B33/127;E21B49/08
主分类号
E21B33/124
代理机构
代理人
主权项
地址
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