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发明名称
Expanded scale root mean square type voltmeter
摘要
申请公布号
US2575996(A)
申请公布日期
1951.11.20
申请号
US19490121009
申请日期
1949.10.12
申请人
SORENSEN & COMPANY, INC.
发明人
BUNBLASKY ADOLPH
分类号
G01R19/02
主分类号
G01R19/02
代理机构
代理人
主权项
地址
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