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发明名称
Improvements in and relating to electric measuring devices with automatic thermo-electric amplifiers
摘要
申请公布号
GB486247(A)
申请公布日期
1938.06.01
申请号
GB19370009671
申请日期
1937.04.05
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
G01R17/08
主分类号
G01R17/08
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