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发明名称
Device for voltage measurement
摘要
申请公布号
US2870406(A)
申请公布日期
1959.01.20
申请号
US19570663316
申请日期
1957.06.03
申请人
发明人
SMITH CALDWELL P.
分类号
G01R19/10;G01R19/17;G01R19/18;G10L19/02;H03M1/00
主分类号
G01R19/10
代理机构
代理人
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地址
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