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发明名称
Improvements in or relating to apparatus with rotating coil system and dry plate rectifiers for measuring alternating current and voltage
摘要
申请公布号
GB352867(A)
申请公布日期
1931.07.16
申请号
GB19300034087
申请日期
1930.11.12
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
G01R19/22
主分类号
G01R19/22
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