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发明名称
Logarithmic electrical measuring system
摘要
申请公布号
US2772397(A)
申请公布日期
1956.11.27
申请号
US19520280883
申请日期
1952.04.07
申请人
RICH THEODORE A
发明人
RICH THEODORE A.
分类号
G01R15/00
主分类号
G01R15/00
代理机构
代理人
主权项
地址
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