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发明名称
Arrangement for the identification of potential differences
摘要
申请公布号
US2577147(A)
申请公布日期
1951.12.04
申请号
US19490111394
申请日期
1949.08.20
申请人
OBERMAN ROELOF M M;ANTONIE SNIJDERS
发明人
OBERMAN ROELOF M. M.;SNIJDERS ANTONIE
分类号
H04Q1/18
主分类号
H04Q1/18
代理机构
代理人
主权项
地址
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