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发明名称
Electrometric apparatus
摘要
申请公布号
US2095305(A)
申请公布日期
1937.10.12
申请号
US19340749559
申请日期
1934.10.23
申请人
ALLISON DONALD K
发明人
ALLISON DONALD K.
分类号
G01R27/02
主分类号
G01R27/02
代理机构
代理人
主权项
地址
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