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发明名称
摘要
申请公布号
SU471512(A1)
申请公布日期
1975.05.25
申请号
SU19711624022
申请日期
1971.01.11
申请人
发明人
分类号
G01F23/16;E21B47/047;(IPC1-7):G01F23/10;E21B47/04
主分类号
G01F23/16
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代理人
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