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发明名称
Improvements in and relating to the measurement of alternating currents
摘要
申请公布号
GB385982(A)
申请公布日期
1933.01.09
申请号
GB19310013513
申请日期
1931.05.07
申请人
CHARLES RICHARD GARROD COSENS;CAMBRIDGE INSTRUMENT COMPANY LIMITED
发明人
分类号
G01R19/00
主分类号
G01R19/00
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