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发明名称
Electrical measuring device
摘要
申请公布号
US2309934(A)
申请公布日期
1943.02.02
申请号
US19410403579
申请日期
1941.07.22
申请人
CLAY ROBY J
发明人
CLAY ROBY J.
分类号
G01R27/28
主分类号
G01R27/28
代理机构
代理人
主权项
地址
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