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发明名称
Measuring device
摘要
申请公布号
US2923250(A)
申请公布日期
1960.02.02
申请号
US19570663223
申请日期
1957.06.03
申请人
HOEPPEL RAYMOND W;THIELE WALTER G
发明人
HOEPPEL RAYMOND W.;THIELE WALTER G.
分类号
E21B21/08;E21B49/00;G01N11/08
主分类号
E21B21/08
代理机构
代理人
主权项
地址
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